623045432 has 32 divisors (see below), whose sum is σ = 1180705680. Its totient is φ = 308206080.

The previous prime is 623045419. The next prime is 623045441. The reversal of 623045432 is 234540326.

It is a super-2 number, since 2×623045432² = 776371220672133248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 623045395 and 623045404.

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, 453098 + ... + 454470.

Almost surely, 2^623045432 is an apocalyptic number.

It is an amenable number.

623045432 is a deficient number, since it is larger than the sum of its proper divisors (557660248).

623045432 is a wasteful number, since it uses less digits than its factorization.

623045432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 623045432 is about 24960.8780294284. The cubic root of 623045432 is about 854.0957721571.

Adding to 623045432 its reverse (234540326), we get a palindrome (857585758).

The spelling of 623045432 in words is "six hundred twenty-three million, forty-five thousand, four hundred thirty-two".