22930400 has 36 divisors (see below), whose sum is σ = 55980792. Its totient is φ = 9171840.

The previous prime is 22930393. The next prime is 22930403. The reversal of 22930400 is 403922.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22930403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13532 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (1555022).

Almost surely, 2^22930400 is an apocalyptic number.

22930400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22930400 is an abundant number, since it is smaller than the sum of its proper divisors (33050392).

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

22930400 is a wasteful number, since it uses less digits than its factorization.

22930400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28683 (or 28670 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 22930400 is about 4788.5697238320. The cubic root of 22930400 is about 284.0995485179.

The spelling of 22930400 in words is "twenty-two million, nine hundred thirty thousand, four hundred".