22878922 has 12 divisors (see below), whose sum is σ = 37722258. Its totient is φ = 10399400.

The previous prime is 22878917. The next prime is 22878937. The reversal of 22878922 is 22987822.

It can be written as a sum of positive squares in only one way, i.e., 22268961 + 609961 = 4719^2 + 781^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47029 + ... + 47512.

Almost surely, 2^22878922 is an apocalyptic number.

22878922 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22878922 is a deficient number, since it is larger than the sum of its proper divisors (14843336).

22878922 is a wasteful number, since it uses less digits than its factorization.

22878922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94565 (or 94554 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 22878922 is about 4783.1916123024. The cubic root of 22878922 is about 283.8867911543.

Subtracting 22878922 from its reverse (22987822), we obtain a square (108900 = 330²).

The spelling of 22878922 in words is "twenty-two million, eight hundred seventy-eight thousand, nine hundred twenty-two".