22479772 has 24 divisors (see below), whose sum is σ = 45410400. Its totient is φ = 9537600.

The previous prime is 22479749. The next prime is 22479799. The reversal of 22479772 is 27797422.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147 + ... + 6802.

It is an arithmetic number, because the mean of its divisors is an integer number (1892100).

Almost surely, 2^22479772 is an apocalyptic number.

It is an amenable number.

22479772 is an abundant number, since it is smaller than the sum of its proper divisors (22930628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22479772 is a wasteful number, since it uses less digits than its factorization.

22479772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8061 (or 8059 counting only the distinct ones).

The product of its digits is 98784, while the sum is 40.

The square root of 22479772 is about 4741.2837923921. The cubic root of 22479772 is about 282.2261820687.

The spelling of 22479772 in words is "twenty-two million, four hundred seventy-nine thousand, seven hundred seventy-two".