22864402 has 24 divisors (see below), whose sum is σ = 38093328. Its totient is φ = 10284120.

The previous prime is 22864399. The next prime is 22864459. The reversal of 22864402 is 20446822.

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 11 ways as a sum of consecutive naturals, for example, 25453 + ... + 26335.

It is an arithmetic number, because the mean of its divisors is an integer number (1587222).

Almost surely, 2^22864402 is an apocalyptic number.

22864402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22864402 is a deficient number, since it is larger than the sum of its proper divisors (15228926).

22864402 is a wasteful number, since it uses less digits than its factorization.

22864402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 22864402 is about 4781.6735564026. The cubic root of 22864402 is about 283.8267226405.

It can be divided in two parts, 22864 and 402, that multiplied together give a triangular number (9191328 = T₄₂₈₇).

The spelling of 22864402 in words is "twenty-two million, eight hundred sixty-four thousand, four hundred two".