623399232 has 56 divisors (see below), whose sum is σ = 1651625856. Its totient is φ = 207520768.

The previous prime is 623399221. The next prime is 623399237. The reversal of 623399232 is 232993326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623399237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181273 + ... + 184679.

Almost surely, 2^623399232 is an apocalyptic number.

It is an amenable number.

623399232 is an abundant number, since it is smaller than the sum of its proper divisors (1028226624).

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

623399232 is a wasteful number, since it uses less digits than its factorization.

623399232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375 (or 4365 counting only the distinct ones).

The product of its digits is 104976, while the sum is 39.

The square root of 623399232 is about 24967.9641140402. The cubic root of 623399232 is about 854.2574093287.

The spelling of 623399232 in words is "six hundred twenty-three million, three hundred ninety-nine thousand, two hundred thirty-two".