672137752 has 32 divisors (see below), whose sum is σ = 1480585680. Its totient is φ = 282015360.

The previous prime is 672137699. The next prime is 672137761. The reversal of 672137752 is 257731276.

It is a happy number.

It is a super-2 number, since 2×672137752² = 903538315327227008, which contains 22 as substring.

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, 292623 + ... + 294910.

Almost surely, 2^672137752 is an apocalyptic number.

It is an amenable number.

672137752 is an abundant number, since it is smaller than the sum of its proper divisors (808447928).

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

672137752 is a wasteful number, since it uses less digits than its factorization.

672137752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587563 (or 587559 counting only the distinct ones).

The product of its digits is 123480, while the sum is 40.

The square root of 672137752 is about 25925.6196068676. The cubic root of 672137752 is about 875.9636738410.

The spelling of 672137752 in words is "six hundred seventy-two million, one hundred thirty-seven thousand, seven hundred fifty-two".