3540122520 has 128 divisors (see below), whose sum is σ = 11663239680. Its totient is φ = 852480000.

The previous prime is 3540122513. The next prime is 3540122527. The reversal of 3540122520 is 252210453.

3540122520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3540122513) and next prime (3540122527).

It is a super-2 number, since 2×3540122520² = 25064934913222300800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3540122527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190440 + ... + 208200.

It is an arithmetic number, because the mean of its divisors is an integer number (91119060).

Almost surely, 2^3540122520 is an apocalyptic number.

3540122520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3540122520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5831619840).

3540122520 is an abundant number, since it is smaller than the sum of its proper divisors (8123117160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3540122520 is a wasteful number, since it uses less digits than its factorization.

3540122520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17937 (or 17933 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 3540122520 is about 59498.9287298519. The cubic root of 3540122520 is about 1524.0741519847.

Adding to 3540122520 its reverse (252210453), we get a palindrome (3792332973).

The spelling of 3540122520 in words is "three billion, five hundred forty million, one hundred twenty-two thousand, five hundred twenty".