3540253640 has 128 divisors (see below), whose sum is σ = 10162437120. Its totient is φ = 1077753600.

The previous prime is 3540253627. The next prime is 3540253643. The reversal of 3540253640 is 463520453.

It is a junction number, because it is equal to n+sod(n) for n = 3540253597 and 3540253606.

It is not an unprimeable number, because it can be changed into a prime (3540253643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119075 + ... + 145805.

It is an arithmetic number, because the mean of its divisors is an integer number (79394040).

Almost surely, 2^3540253640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3540253640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5081218560).

3540253640 is an abundant number, since it is smaller than the sum of its proper divisors (6622183480).

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

3540253640 is a wasteful number, since it uses less digits than its factorization.

3540253640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26803 (or 26799 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 3540253640 is about 59500.0305882274. The cubic root of 3540253640 is about 1524.0929681071.

The spelling of 3540253640 in words is "three billion, five hundred forty million, two hundred fifty-three thousand, six hundred forty".