623720304 has 40 divisors (see below), whose sum is σ = 1790309520. Its totient is φ = 207906624.

The previous prime is 623720297. The next prime is 623720333. The reversal of 623720304 is 403027326.

623720304 is a `hidden beast` number, since 623 + 7 + 2 + 0 + 30 + 4 = 666.

623720304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 721467 + ... + 722330.

It is an arithmetic number, because the mean of its divisors is an integer number (44757738).

Almost surely, 2^623720304 is an apocalyptic number.

It is an amenable number.

623720304 is an abundant number, since it is smaller than the sum of its proper divisors (1166589216).

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

623720304 is a wasteful number, since it uses less digits than its factorization.

623720304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443814 (or 1443802 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 623720304 is about 24974.3929655958. The cubic root of 623720304 is about 854.4040414529.

The spelling of 623720304 in words is "six hundred twenty-three million, seven hundred twenty thousand, three hundred four".