672992256 has 88 divisors (see below), whose sum is σ = 1818947824. Its totient is φ = 221184000.

The previous prime is 672992249. The next prime is 672992377. The reversal of 672992256 is 652299276.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 222756 + ... + 225756.

Almost surely, 2^672992256 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 672992256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909473912).

672992256 is an abundant number, since it is smaller than the sum of its proper divisors (1145955568).

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

672992256 is a wasteful number, since it uses less digits than its factorization.

672992256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3079 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 672992256 is about 25942.0942870848. The cubic root of 672992256 is about 876.3347274847.

The spelling of 672992256 in words is "six hundred seventy-two million, nine hundred ninety-two thousand, two hundred fifty-six".