22824720 has 80 divisors (see below), whose sum is σ = 78625920. Its totient is φ = 6086016.

The previous prime is 22824713. The next prime is 22824731. The reversal of 22824720 is 2742822.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3124 + ... + 7443.

It is an arithmetic number, because the mean of its divisors is an integer number (982824).

Almost surely, 2^22824720 is an apocalyptic number.

22824720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22824720 is an abundant number, since it is smaller than the sum of its proper divisors (55801200).

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

22824720 is a wasteful number, since it uses less digits than its factorization.

22824720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10589 (or 10577 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 22824720 is about 4777.5223704343. The cubic root of 22824720 is about 283.6624303639.

The spelling of 22824720 in words is "twenty-two million, eight hundred twenty-four thousand, seven hundred twenty".