20732992 has 28 divisors (see below), whose sum is σ = 47020480. Its totient is φ = 8885376.

The previous prime is 20732983. The next prime is 20733029. The reversal of 20732992 is 29923702.

It is a tau number, because it is divible by the number of its divisors (28).

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, 22692 + ... + 23587.

Almost surely, 2^20732992 is an apocalyptic number.

It is an amenable number.

20732992 is an abundant number, since it is smaller than the sum of its proper divisors (26287488).

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

20732992 is an equidigital number, since it uses as much as digits as its factorization.

20732992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46298 (or 46288 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 20732992 is about 4553.3495363304. The cubic root of 20732992 is about 274.7181332323.

The spelling of 20732992 in words is "twenty million, seven hundred thirty-two thousand, nine hundred ninety-two".