19372916 has 12 divisors (see below), whose sum is σ = 34409088. Its totient is φ = 9541752.

The previous prime is 19372909. The next prime is 19372949. The reversal of 19372916 is 61927391.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19372916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35876 + ... + 36411.

It is an arithmetic number, because the mean of its divisors is an integer number (2867424).

Almost surely, 2^19372916 is an apocalyptic number.

It is an amenable number.

19372916 is a deficient number, since it is larger than the sum of its proper divisors (15036172).

19372916 is a wasteful number, since it uses less digits than its factorization.

19372916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72358 (or 72356 counting only the distinct ones).

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

The square root of 19372916 is about 4401.4674825562. The cubic root of 19372916 is about 268.5746376452.

The spelling of 19372916 in words is "nineteen million, three hundred seventy-two thousand, nine hundred sixteen".