22997260 has 144 divisors (see below), whose sum is σ = 61937568. Its totient is φ = 7096320.

The previous prime is 22997251. The next prime is 22997279. The reversal of 22997260 is 6279922.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 534799 + ... + 534841.

It is an arithmetic number, because the mean of its divisors is an integer number (430122).

Almost surely, 2^22997260 is an apocalyptic number.

22997260 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 22997260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30968784).

22997260 is an abundant number, since it is smaller than the sum of its proper divisors (38940308).

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

22997260 is a wasteful number, since it uses less digits than its factorization.

22997260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 22997260 is about 4795.5458500571. The cubic root of 22997260 is about 284.3754044997.

It can be divided in two parts, 229972 and 60, that added together give a palindrome (230032).

The spelling of 22997260 in words is "twenty-two million, nine hundred ninety-seven thousand, two hundred sixty".