20220168 has 16 divisors (see below), whose sum is σ = 50550480. Its totient is φ = 6740048.

The previous prime is 20220149. The next prime is 20220173. The reversal of 20220168 is 86102202.

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, 421230 + ... + 421277.

It is an arithmetic number, because the mean of its divisors is an integer number (3159405).

Almost surely, 2^20220168 is an apocalyptic number.

It is an amenable number.

20220168 is an abundant number, since it is smaller than the sum of its proper divisors (30330312).

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

20220168 is a wasteful number, since it uses less digits than its factorization.

20220168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842516 (or 842512 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20220168 is about 4496.6841116538. The cubic root of 20220168 is about 272.4341753866.

The spelling of 20220168 in words is "twenty million, two hundred twenty thousand, one hundred sixty-eight".