22990171 has 16 divisors (see below), whose sum is σ = 25898400. Its totient is φ = 20279808.

The previous prime is 22990159. The next prime is 22990193. The reversal of 22990171 is 17109922.

It is a cyclic number.

It is not a de Polignac number, because 22990171 - 2⁵ = 22990139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22990151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34881 + ... + 35533.

It is an arithmetic number, because the mean of its divisors is an integer number (1618650).

Almost surely, 2^22990171 is an apocalyptic number.

22990171 is a deficient number, since it is larger than the sum of its proper divisors (2908229).

22990171 is a wasteful number, since it uses less digits than its factorization.

22990171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 22990171 is about 4794.8066697209. The cubic root of 22990171 is about 284.3461815340.

The spelling of 22990171 in words is "twenty-two million, nine hundred ninety thousand, one hundred seventy-one".