623041636 has 24 divisors (see below), whose sum is σ = 1319383296. Its totient is φ = 251310720.

The previous prime is 623041621. The next prime is 623041649. The reversal of 623041636 is 636140326.

It is a junction number, because it is equal to n+sod(n) for n = 623041598 and 623041607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653980 + ... + 654931.

It is an arithmetic number, because the mean of its divisors is an integer number (54974304).

Almost surely, 2^623041636 is an apocalyptic number.

It is an amenable number.

623041636 is an abundant number, since it is smaller than the sum of its proper divisors (696341660).

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

623041636 is a wasteful number, since it uses less digits than its factorization.

623041636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308939 (or 1308937 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 623041636 is about 24960.8019903207. The cubic root of 623041636 is about 854.0940375837.

The spelling of 623041636 in words is "six hundred twenty-three million, forty-one thousand, six hundred thirty-six".