3258972640 has 96 divisors (see below), whose sum is σ = 9599192064. Its totient is φ = 1015779840.

The previous prime is 3258972637. The next prime is 3258972667. The reversal of 3258972640 is 462798523.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119944 + ... + 144583.

It is an arithmetic number, because the mean of its divisors is an integer number (99991584).

Almost surely, 2^3258972640 is an apocalyptic number.

It is an amenable number.

3258972640 is an abundant number, since it is smaller than the sum of its proper divisors (6340219424).

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

3258972640 is a wasteful number, since it uses less digits than its factorization.

3258972640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264560 (or 264552 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 3258972640 is about 57087.4122727594. The cubic root of 3258972640 is about 1482.6099309257.

The spelling of 3258972640 in words is "three billion, two hundred fifty-eight million, nine hundred seventy-two thousand, six hundred forty".