22816320 has 56 divisors (see below), whose sum is σ = 72444864. Its totient is φ = 6084096.

The previous prime is 22816319. The next prime is 22816337. The reversal of 22816320 is 2361822.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 10924 + ... + 12843.

Almost surely, 2^22816320 is an apocalyptic number.

22816320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22816320 is an abundant number, since it is smaller than the sum of its proper divisors (49628544).

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

22816320 is a wasteful number, since it uses less digits than its factorization.

22816320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23787 (or 23777 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22816320 is about 4776.6431727731. The cubic root of 22816320 is about 283.6276280855.

The spelling of 22816320 in words is "twenty-two million, eight hundred sixteen thousand, three hundred twenty".