20432992 has 24 divisors (see below), whose sum is σ = 40783176. Its totient is φ = 10075392.

The previous prime is 20432981. The next prime is 20433013. The reversal of 20432992 is 29923402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038 + ... + 6709.

It is an arithmetic number, because the mean of its divisors is an integer number (1699299).

Almost surely, 2^20432992 is an apocalyptic number.

It is an amenable number.

20432992 is a deficient number, since it is larger than the sum of its proper divisors (20350184).

20432992 is an equidigital number, since it uses as much as digits as its factorization.

20432992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8830 (or 8822 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 20432992 is about 4520.2867165701. The cubic root of 20432992 is about 273.3866615493.

The spelling of 20432992 in words is "twenty million, four hundred thirty-two thousand, nine hundred ninety-two".