20332992 has 56 divisors (see below), whose sum is σ = 54260496. Its totient is φ = 6719488.

The previous prime is 20332981. The next prime is 20333009. The reversal of 20332992 is 29923302.

It is a happy number.

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, 25918 + ... + 26690.

Almost surely, 2^20332992 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 20332992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27130248).

20332992 is an abundant number, since it is smaller than the sum of its proper divisors (33927504).

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

20332992 is a wasteful number, since it uses less digits than its factorization.

20332992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 20332992 is about 4509.2119045350. The cubic root of 20332992 is about 272.9399430477.

The spelling of 20332992 in words is "twenty million, three hundred thirty-two thousand, nine hundred ninety-two".