22894157 has 16 divisors (see below), whose sum is σ = 27629952. Its totient is φ = 18688320.

The previous prime is 22894153. The next prime is 22894169. The reversal of 22894157 is 75149822.

It is a cyclic number.

It is not a de Polignac number, because 22894157 - 2² = 22894153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22894157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22894153) 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, 3128 + ... + 7454.

It is an arithmetic number, because the mean of its divisors is an integer number (1726872).

Almost surely, 2^22894157 is an apocalyptic number.

It is an amenable number.

22894157 is a deficient number, since it is larger than the sum of its proper divisors (4735795).

22894157 is a wasteful number, since it uses less digits than its factorization.

22894157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388.

The product of its digits is 40320, while the sum is 38.

The square root of 22894157 is about 4784.7839031664. The cubic root of 22894157 is about 283.9497902707.

It can be divided in two parts, 2289 and 4157, that added together give a palindrome (6446).

The spelling of 22894157 in words is "twenty-two million, eight hundred ninety-four thousand, one hundred fifty-seven".