19692992 has 42 divisors (see below), whose sum is σ = 42970704. Its totient is φ = 8947840.

The previous prime is 19692989. The next prime is 19693007. The reversal of 19692992 is 29929691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6473 + ... + 9015.

It is an arithmetic number, because the mean of its divisors is an integer number (1023112).

Almost surely, 2^19692992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19692992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21485352).

19692992 is an abundant number, since it is smaller than the sum of its proper divisors (23277712).

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

19692992 is a wasteful number, since it uses less digits than its factorization.

19692992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577 (or 2556 counting only the distinct ones).

The product of its digits is 157464, while the sum is 47.

The square root of 19692992 is about 4437.6786724593. The cubic root of 19692992 is about 270.0456804283.

The spelling of 19692992 in words is "nineteen million, six hundred ninety-two thousand, nine hundred ninety-two".