623402528 has 24 divisors (see below), whose sum is σ = 1402656192. Its totient is φ = 267172416.

The previous prime is 623402513. The next prime is 623402537. The reversal of 623402528 is 825204326.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 623402494 and 623402503.

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, 1391300 + ... + 1391747.

It is an arithmetic number, because the mean of its divisors is an integer number (58444008).

Almost surely, 2^623402528 is an apocalyptic number.

It is an amenable number.

623402528 is an abundant number, since it is smaller than the sum of its proper divisors (779253664).

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

623402528 is a wasteful number, since it uses less digits than its factorization.

623402528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783064 (or 2783056 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 623402528 is about 24968.0301185336. The cubic root of 623402528 is about 854.2589148527.

The spelling of 623402528 in words is "six hundred twenty-three million, four hundred two thousand, five hundred twenty-eight".