22772774 has 4 divisors (see below), whose sum is σ = 34159164. Its totient is φ = 11386386.

The previous prime is 22772759. The next prime is 22772791. The reversal of 22772774 is 47727722.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5693192 + ... + 5693195.

It is an arithmetic number, because the mean of its divisors is an integer number (8539791).

Almost surely, 2^22772774 is an apocalyptic number.

22772774 is a deficient number, since it is larger than the sum of its proper divisors (11386390).

22772774 is a wasteful number, since it uses less digits than its factorization.

22772774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11386389.

The product of its digits is 76832, while the sum is 38.

The square root of 22772774 is about 4772.0827738001. The cubic root of 22772774 is about 283.4470743646.

The spelling of 22772774 in words is "twenty-two million, seven hundred seventy-two thousand, seven hundred seventy-four".