20225976 has 32 divisors (see below), whose sum is σ = 51933840. Its totient is φ = 6559488.

The previous prime is 20225941. The next prime is 20225977. The reversal of 20225976 is 67952202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20225977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10501 + ... + 12276.

Almost surely, 2^20225976 is an apocalyptic number.

It is an amenable number.

20225976 is an abundant number, since it is smaller than the sum of its proper divisors (31707864).

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

20225976 is a wasteful number, since it uses less digits than its factorization.

20225976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22823 (or 22819 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 20225976 is about 4497.3298744922. The cubic root of 20225976 is about 272.4602573693.

The spelling of 20225976 in words is "twenty million, two hundred twenty-five thousand, nine hundred seventy-six".