22774491 has 12 divisors (see below), whose sum is σ = 33958080. Its totient is φ = 14693040.

The previous prime is 22774459. The next prime is 22774511. The reversal of 22774491 is 19447722.

It is not a de Polignac number, because 22774491 - 2⁵ = 22774459 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22774421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40536 + ... + 41093.

It is an arithmetic number, because the mean of its divisors is an integer number (2829840).

Almost surely, 2^22774491 is an apocalyptic number.

22774491 is a deficient number, since it is larger than the sum of its proper divisors (11183589).

22774491 is a wasteful number, since it uses less digits than its factorization.

22774491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81666 (or 81663 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 22774491 is about 4772.2626708931. The cubic root of 22774491 is about 283.4541978767.

The spelling of 22774491 in words is "twenty-two million, seven hundred seventy-four thousand, four hundred ninety-one".