19938192 has 20 divisors (see below), whose sum is σ = 51507120. Its totient is φ = 6646048.

The previous prime is 19938187. The next prime is 19938203. The reversal of 19938192 is 29183991.

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, 207642 + ... + 207737.

It is an arithmetic number, because the mean of its divisors is an integer number (2575356).

Almost surely, 2^19938192 is an apocalyptic number.

19938192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19938192 is an abundant number, since it is smaller than the sum of its proper divisors (31568928).

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

19938192 is a wasteful number, since it uses less digits than its factorization.

19938192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415390 (or 415384 counting only the distinct ones).

The product of its digits is 34992, while the sum is 42.

The square root of 19938192 is about 4465.2202633241. The cubic root of 19938192 is about 271.1618519101.

The spelling of 19938192 in words is "nineteen million, nine hundred thirty-eight thousand, one hundred ninety-two".