22522772 has 6 divisors (see below), whose sum is σ = 39414858. Its totient is φ = 11261384.

The previous prime is 22522769. The next prime is 22522783. The reversal of 22522772 is 27722522.

It can be written as a sum of positive squares in only one way, i.e., 13060996 + 9461776 = 3614^2 + 3076^2 .

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, 2815343 + ... + 2815350.

It is an arithmetic number, because the mean of its divisors is an integer number (6569143).

Almost surely, 2^22522772 is an apocalyptic number.

It is an amenable number.

22522772 is a deficient number, since it is larger than the sum of its proper divisors (16892086).

22522772 is a wasteful number, since it uses less digits than its factorization.

22522772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630697 (or 5630695 counting only the distinct ones).

The product of its digits is 7840, while the sum is 29.

The square root of 22522772 is about 4745.8162627729. The cubic root of 22522772 is about 282.4060177624.

The spelling of 22522772 in words is "twenty-two million, five hundred twenty-two thousand, seven hundred seventy-two".