20296872 has 32 divisors (see below), whose sum is σ = 56380800. Its totient is φ = 6765552.

The previous prime is 20296867. The next prime is 20296873. The reversal of 20296872 is 27869202.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20296873) 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, 46768 + ... + 47199.

It is an arithmetic number, because the mean of its divisors is an integer number (1761900).

Almost surely, 2^20296872 is an apocalyptic number.

It is an amenable number.

20296872 is an abundant number, since it is smaller than the sum of its proper divisors (36083928).

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

20296872 is a wasteful number, since it uses less digits than its factorization.

20296872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93982 (or 93972 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 20296872 is about 4505.2049897868. The cubic root of 20296872 is about 272.7782282972.

The spelling of 20296872 in words is "twenty million, two hundred ninety-six thousand, eight hundred seventy-two".