19422912 has 28 divisors (see below), whose sum is σ = 51390296. Its totient is φ = 6474240.

The previous prime is 19422899. The next prime is 19422943. The reversal of 19422912 is 21922491.

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 19422912.

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, 50389 + ... + 50772.

Almost surely, 2^19422912 is an apocalyptic number.

19422912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19422912 is an abundant number, since it is smaller than the sum of its proper divisors (31967384).

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

19422912 is a wasteful number, since it uses less digits than its factorization.

19422912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101176 (or 101166 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 19422912 is about 4407.1432924288. The cubic root of 19422912 is about 268.8054774961.

The spelling of 19422912 in words is "nineteen million, four hundred twenty-two thousand, nine hundred twelve".