623385590 has 16 divisors (see below), whose sum is σ = 1122510960. Its totient is φ = 249261600.

The previous prime is 623385559. The next prime is 623385593. The reversal of 623385590 is 95583326.

623385590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623385593) 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, 21065 + ... + 41115.

It is an arithmetic number, because the mean of its divisors is an integer number (70156935).

Almost surely, 2^623385590 is an apocalyptic number.

623385590 is a deficient number, since it is larger than the sum of its proper divisors (499125370).

623385590 is a wasteful number, since it uses less digits than its factorization.

623385590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23167.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 623385590 is about 24967.6909224702. The cubic root of 623385590 is about 854.2511779743.

The spelling of 623385590 in words is "six hundred twenty-three million, three hundred eighty-five thousand, five hundred ninety".