22864620 has 24 divisors (see below), whose sum is σ = 64021104. Its totient is φ = 6097216.

The previous prime is 22864601. The next prime is 22864637. The reversal of 22864620 is 2646822.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 190479 + ... + 190598.

It is an arithmetic number, because the mean of its divisors is an integer number (2667546).

Almost surely, 2^22864620 is an apocalyptic number.

22864620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22864620 is an abundant number, since it is smaller than the sum of its proper divisors (41156484).

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

22864620 is a wasteful number, since it uses less digits than its factorization.

22864620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381089 (or 381087 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 22864620 is about 4781.6963517145. The cubic root of 22864620 is about 283.8276246836.

The spelling of 22864620 in words is "twenty-two million, eight hundred sixty-four thousand, six hundred twenty".