22771948 has 12 divisors (see below), whose sum is σ = 39884320. Its totient is φ = 11376432.

The previous prime is 22771939. The next prime is 22771979. The reversal of 22771948 is 84917722.

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 self number, because there is not a number n which added to its sum of digits gives 22771948.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8338 + ... + 10726.

Almost surely, 2^22771948 is an apocalyptic number.

It is an amenable number.

22771948 is a deficient number, since it is larger than the sum of its proper divisors (17112372).

22771948 is a wasteful number, since it uses less digits than its factorization.

22771948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776 (or 4774 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 22771948 is about 4771.9962279952. The cubic root of 22771948 is about 283.4436473174.

It can be divided in two parts, 2277 and 1948, that added together give a square (4225 = 65²).

The spelling of 22771948 in words is "twenty-two million, seven hundred seventy-one thousand, nine hundred forty-eight".