22869920 has 48 divisors (see below), whose sum is σ = 56881440. Its totient is φ = 8665344.

The previous prime is 22869919. The next prime is 22869943. The reversal of 22869920 is 2996822.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 722 + ... + 6801.

It is an arithmetic number, because the mean of its divisors is an integer number (1185030).

Almost surely, 2^22869920 is an apocalyptic number.

22869920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22869920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28440720).

22869920 is an abundant number, since it is smaller than the sum of its proper divisors (34011520).

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

22869920 is a wasteful number, since it uses less digits than its factorization.

22869920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7557 (or 7549 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 22869920 is about 4782.2505162319. The cubic root of 22869920 is about 283.8495533255.

The spelling of 22869920 in words is "twenty-two million, eight hundred sixty-nine thousand, nine hundred twenty".