19204992 has 64 divisors (see below), whose sum is σ = 56691600. Its totient is φ = 6400512.

The previous prime is 19204981. The next prime is 19205033. The reversal of 19204992 is 29940291.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678 + ... + 6234.

Almost surely, 2^19204992 is an apocalyptic number.

19204992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19204992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28345800).

19204992 is an abundant number, since it is smaller than the sum of its proper divisors (37486608).

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

19204992 is an equidigital number, since it uses as much as digits as its factorization.

19204992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580 (or 5562 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 19204992 is about 4382.3500544799. The cubic root of 19204992 is about 267.7963850308.

The spelling of 19204992 in words is "nineteen million, two hundred four thousand, nine hundred ninety-two".