22913000 has 64 divisors (see below), whose sum is σ = 58518720. Its totient is φ = 8328000.

The previous prime is 22912997. The next prime is 22913057. The reversal of 22913000 is 31922.

It is a self number, because there is not a number n which added to its sum of digits gives 22913000.

It is a congruent number.

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, 9959 + ... + 12041.

It is an arithmetic number, because the mean of its divisors is an integer number (914355).

Almost surely, 2^22913000 is an apocalyptic number.

22913000 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 22913000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29259360).

22913000 is an abundant number, since it is smaller than the sum of its proper divisors (35605720).

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

22913000 is a wasteful number, since it uses less digits than its factorization.

22913000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2101 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 22913000 is about 4786.7525526185. The cubic root of 22913000 is about 284.0276703847.

Adding to 22913000 its reverse (31922), we get a palindrome (22944922).

The spelling of 22913000 in words is "twenty-two million, nine hundred thirteen thousand".