3540301220 has 48 divisors (see below), whose sum is σ = 7770809088. Its totient is φ = 1352292480.

The previous prime is 3540301207. The next prime is 3540301223. The reversal of 3540301220 is 221030453.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3540301192 and 3540301201.

It is not an unprimeable number, because it can be changed into a prime (3540301223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284162 + ... + 296358.

It is an arithmetic number, because the mean of its divisors is an integer number (161891856).

Almost surely, 2^3540301220 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 3540301220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3885404544).

3540301220 is an abundant number, since it is smaller than the sum of its proper divisors (4230507868).

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

3540301220 is a wasteful number, since it uses less digits than its factorization.

3540301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12860 (or 12858 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3540301220 is about 59500.4304186113. The cubic root of 3540301220 is about 1524.0997958682.

Adding to 3540301220 its reverse (221030453), we get a palindrome (3761331673).

The spelling of 3540301220 in words is "three billion, five hundred forty million, three hundred one thousand, two hundred twenty".