19316972 has 12 divisors (see below), whose sum is σ = 33891816. Its totient is φ = 9633600.

The previous prime is 19316959. The next prime is 19316993. The reversal of 19316972 is 27961391.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 4418 + ... + 7625.

It is an arithmetic number, because the mean of its divisors is an integer number (2824318).

Almost surely, 2^19316972 is an apocalyptic number.

It is an amenable number.

19316972 is a deficient number, since it is larger than the sum of its proper divisors (14574844).

19316972 is a wasteful number, since it uses less digits than its factorization.

19316972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12448 (or 12446 counting only the distinct ones).

The product of its digits is 20412, while the sum is 38.

The square root of 19316972 is about 4395.1077347433. The cubic root of 19316972 is about 268.3158635627.

The spelling of 19316972 in words is "nineteen million, three hundred sixteen thousand, nine hundred seventy-two".