22779954 has 20 divisors (see below), whose sum is σ = 51044334. Its totient is φ = 7593264.

The previous prime is 22779943. The next prime is 22779961. The reversal of 22779954 is 45997722.

It can be written as a sum of positive squares in only one way, i.e., 20007729 + 2772225 = 4473^2 + 1665^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 70147 + ... + 70470.

Almost surely, 2^22779954 is an apocalyptic number.

22779954 is an abundant number, since it is smaller than the sum of its proper divisors (28264380).

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

22779954 is a wasteful number, since it uses less digits than its factorization.

22779954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140631 (or 140622 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 22779954 is about 4772.8350065763. The cubic root of 22779954 is about 283.4768604613.

The spelling of 22779954 in words is "twenty-two million, seven hundred seventy-nine thousand, nine hundred fifty-four".