19264868 has 12 divisors (see below), whose sum is σ = 38529792. Its totient is φ = 8256360.

The previous prime is 19264853. The next prime is 19264871. The reversal of 19264868 is 86846291.

It is a happy number.

19264868 is an admirable number.

It is a super-2 number, since 2×19264868² = 742270278114848, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 343988 + ... + 344043.

It is an arithmetic number, because the mean of its divisors is an integer number (3210816).

Almost surely, 2^19264868 is an apocalyptic number.

It is an amenable number.

19264868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19264868 is a wasteful number, since it uses less digits than its factorization.

19264868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688042 (or 688040 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 19264868 is about 4389.1762325065. The cubic root of 19264868 is about 268.0744020055.

The spelling of 19264868 in words is "nineteen million, two hundred sixty-four thousand, eight hundred sixty-eight".