19338992 has 20 divisors (see below), whose sum is σ = 38342040. Its totient is φ = 9444288.

The previous prime is 19338989. The next prime is 19338997. The reversal of 19338992 is 29983391.

It is a super-2 number, since 2×19338992² = 747993223152128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19338997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13367 + ... + 14742.

It is an arithmetic number, because the mean of its divisors is an integer number (1917102).

Almost surely, 2^19338992 is an apocalyptic number.

It is an amenable number.

19338992 is a deficient number, since it is larger than the sum of its proper divisors (19003048).

19338992 is a wasteful number, since it uses less digits than its factorization.

19338992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28160 (or 28154 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 19338992 is about 4397.6120792994. The cubic root of 19338992 is about 268.4177786336.

The spelling of 19338992 in words is "nineteen million, three hundred thirty-eight thousand, nine hundred ninety-two".