3257912772 has 72 divisors (see below), whose sum is σ = 8527999200. Its totient is φ = 1075584096.

The previous prime is 3257912743. The next prime is 3257912773. The reversal of 3257912772 is 2772197523.

3257912772 is a `hidden beast` number, since 3 + 2 + 579 + 1 + 2 + 7 + 72 = 666.

3257912772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3257912772² = 21227991259921447968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3257912773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1281879 + ... + 1284417.

Almost surely, 2^3257912772 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 3257912772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4263999600).

3257912772 is an abundant number, since it is smaller than the sum of its proper divisors (5270086428).

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

3257912772 is a wasteful number, since it uses less digits than its factorization.

3257912772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770 (or 2653 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 3257912772 is about 57078.1286658909. The cubic root of 3257912772 is about 1482.4491909859.

The spelling of 3257912772 in words is "three billion, two hundred fifty-seven million, nine hundred twelve thousand, seven hundred seventy-two".