3231780672 has 56 divisors (see below), whose sum is σ = 8557463200. Its totient is φ = 1076414976.

The previous prime is 3231780653. The next prime is 3231780689. The reversal of 3231780672 is 2760871323.

It is a self number, because there is not a number n which added to its sum of digits gives 3231780672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268479 + ... + 280257.

Almost surely, 2^3231780672 is an apocalyptic number.

3231780672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3231780672 is an abundant number, since it is smaller than the sum of its proper divisors (5325682528).

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

3231780672 is a wasteful number, since it uses less digits than its factorization.

3231780672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13223 (or 13213 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 3231780672 is about 56848.7525984520. The cubic root of 3231780672 is about 1478.4749130440.

The spelling of 3231780672 in words is "three billion, two hundred thirty-one million, seven hundred eighty thousand, six hundred seventy-two".