3120405252 has 48 divisors (see below), whose sum is σ = 7540135680. Its totient is φ = 1003691808.

The previous prime is 3120405251. The next prime is 3120405259. The reversal of 3120405252 is 2525040213.

It is not an unprimeable number, because it can be changed into a prime (3120405251) 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, 6399 + ... + 79257.

It is an arithmetic number, because the mean of its divisors is an integer number (157086160).

Almost surely, 2^3120405252 is an apocalyptic number.

It is an amenable number.

3120405252 is an abundant number, since it is smaller than the sum of its proper divisors (4419730428).

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

3120405252 is a wasteful number, since it uses less digits than its factorization.

3120405252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72992 (or 72990 counting only the distinct ones).

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

The square root of 3120405252 is about 55860.5876445997. The cubic root of 3120405252 is about 1461.2919776568.

Adding to 3120405252 its reverse (2525040213), we get a palindrome (5645445465).

The spelling of 3120405252 in words is "three billion, one hundred twenty million, four hundred five thousand, two hundred fifty-two".