672568404 has 12 divisors (see below), whose sum is σ = 1569326304. Its totient is φ = 224189464.

The previous prime is 672568367. The next prime is 672568411. The reversal of 672568404 is 404865276.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28023672 + ... + 28023695.

It is an arithmetic number, because the mean of its divisors is an integer number (130777192).

Almost surely, 2^672568404 is an apocalyptic number.

It is an amenable number.

672568404 is an abundant number, since it is smaller than the sum of its proper divisors (896757900).

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

672568404 is a wasteful number, since it uses less digits than its factorization.

672568404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56047374 (or 56047372 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 672568404 is about 25933.9238064740. The cubic root of 672568404 is about 876.1507163374.

The spelling of 672568404 in words is "six hundred seventy-two million, five hundred sixty-eight thousand, four hundred four".