20142976 has 32 divisors (see below), whose sum is σ = 45863280. Its totient is φ = 8632320.

The previous prime is 20142959. The next prime is 20143007. The reversal of 20142976 is 67924102.

It is a tau number, because it is divible by the number of its divisors (32).

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, 10345 + ... + 12136.

Almost surely, 2^20142976 is an apocalyptic number.

It is an amenable number.

20142976 is an abundant number, since it is smaller than the sum of its proper divisors (25720304).

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

20142976 is an equidigital number, since it uses as much as digits as its factorization.

20142976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22502 (or 22490 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20142976 is about 4488.0926906649. The cubic root of 20142976 is about 272.0870540268.

The spelling of 20142976 in words is "twenty million, one hundred forty-two thousand, nine hundred seventy-six".