22985860 has 24 divisors (see below), whose sum is σ = 48628440. Its totient is φ = 9126144.

The previous prime is 22985821. The next prime is 22985863. The reversal of 22985860 is 6858922.

It can be written as a sum of positive squares in 4 ways, for example, as 6728836 + 16257024 = 2594^2 + 4032^2 .

It is not an unprimeable number, because it can be changed into a prime (22985863) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1455 + ... + 6934.

It is an arithmetic number, because the mean of its divisors is an integer number (2026185).

Almost surely, 2^22985860 is an apocalyptic number.

22985860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22985860 is an abundant number, since it is smaller than the sum of its proper divisors (25642580).

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

22985860 is a wasteful number, since it uses less digits than its factorization.

22985860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8535 (or 8533 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 22985860 is about 4794.3570997580. The cubic root of 22985860 is about 284.3284073728.

The spelling of 22985860 in words is "twenty-two million, nine hundred eighty-five thousand, eight hundred sixty".