20573896 has 16 divisors (see below), whose sum is σ = 44087040. Its totient is φ = 8817360.

The previous prime is 20573879. The next prime is 20573933. The reversal of 20573896 is 69837502.

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, 183640 + ... + 183751.

It is an arithmetic number, because the mean of its divisors is an integer number (2755440).

Almost surely, 2^20573896 is an apocalyptic number.

It is an amenable number.

20573896 is an abundant number, since it is smaller than the sum of its proper divisors (23513144).

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

20573896 is a wasteful number, since it uses less digits than its factorization.

20573896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367404 (or 367400 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 20573896 is about 4535.8456763871. The cubic root of 20573896 is about 274.0136388331.

The spelling of 20573896 in words is "twenty million, five hundred seventy-three thousand, eight hundred ninety-six".