623401136 has 10 divisors (see below), whose sum is σ = 1207839732. Its totient is φ = 311700560.

The previous prime is 623401127. The next prime is 623401231. The reversal of 623401136 is 631104326.

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 as a sum of consecutive naturals, namely, 19481270 + ... + 19481301.

Almost surely, 2^623401136 is an apocalyptic number.

It is an amenable number.

623401136 is a deficient number, since it is larger than the sum of its proper divisors (584438596).

623401136 is a wasteful number, since it uses less digits than its factorization.

623401136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38962579 (or 38962573 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 623401136 is about 24968.0022428708. The cubic root of 623401136 is about 854.2582790252.

The spelling of 623401136 in words is "six hundred twenty-three million, four hundred one thousand, one hundred thirty-six".