20322992 has 20 divisors (see below), whose sum is σ = 39494496. Its totient is φ = 10130880.

The previous prime is 20322983. The next prime is 20323013. The reversal of 20322992 is 29922302.

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, 4142 + ... + 7602.

Almost surely, 2^20322992 is an apocalyptic number.

It is an amenable number.

20322992 is a deficient number, since it is larger than the sum of its proper divisors (19171504).

20322992 is a wasteful number, since it uses less digits than its factorization.

20322992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836 (or 3830 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 20322992 is about 4508.1029269528. The cubic root of 20322992 is about 272.8951907063.

The spelling of 20322992 in words is "twenty million, three hundred twenty-two thousand, nine hundred ninety-two".