20221896 has 32 divisors (see below), whose sum is σ = 51415200. Its totient is φ = 6625920.

The previous prime is 20221879. The next prime is 20221913. The reversal of 20221896 is 69812202.

It is an interprime number because it is at equal distance from previous prime (20221879) and next prime (20221913).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5725 + ... + 8556.

It is an arithmetic number, because the mean of its divisors is an integer number (1606725).

Almost surely, 2^20221896 is an apocalyptic number.

It is an amenable number.

20221896 is an abundant number, since it is smaller than the sum of its proper divisors (31193304).

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

20221896 is a wasteful number, since it uses less digits than its factorization.

20221896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14349 (or 14345 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 20221896 is about 4496.8762491312. The cubic root of 20221896 is about 272.4419358372.

The spelling of 20221896 in words is "twenty million, two hundred twenty-one thousand, eight hundred ninety-six".