22166457 has 32 divisors (see below), whose sum is σ = 32710656. Its totient is φ = 13305600.

The previous prime is 22166447. The next prime is 22166461. The reversal of 22166457 is 75466122.

It is not a de Polignac number, because 22166457 - 2⁸ = 22166201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22166447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91857 + ... + 92097.

It is an arithmetic number, because the mean of its divisors is an integer number (1022208).

Almost surely, 2^22166457 is an apocalyptic number.

It is an amenable number.

22166457 is a deficient number, since it is larger than the sum of its proper divisors (10544199).

22166457 is a wasteful number, since it uses less digits than its factorization.

22166457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341.

The product of its digits is 20160, while the sum is 33.

The square root of 22166457 is about 4708.1266975306. The cubic root of 22166457 is about 280.9088537270.

The spelling of 22166457 in words is "twenty-two million, one hundred sixty-six thousand, four hundred fifty-seven".