22980000 has 120 divisors (see below), whose sum is σ = 75575808. Its totient is φ = 6112000.

The previous prime is 22979993. The next prime is 22980011. The reversal of 22980000 is 8922.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 59809 + ... + 60191.

Almost surely, 2^22980000 is an apocalyptic number.

22980000 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 22980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37787904).

22980000 is an abundant number, since it is smaller than the sum of its proper divisors (52595808).

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

22980000 is an equidigital number, since it uses as much as digits as its factorization.

22980000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 22980000 is about 4793.7459256828. The cubic root of 22980000 is about 284.3042431536.

Adding to 22980000 its reverse (8922), we get a palindrome (22988922).

The spelling of 22980000 in words is "twenty-two million, nine hundred eighty thousand".