22297264 has 40 divisors (see below), whose sum is σ = 47496960. Its totient is φ = 10056000.

The previous prime is 22297243. The next prime is 22297271. The reversal of 22297264 is 46279222.

It is a super-3 number, since 3×22297264³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26157 + ... + 26995.

It is an arithmetic number, because the mean of its divisors is an integer number (1187424).

Almost surely, 2^22297264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22297264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23748480).

22297264 is an abundant number, since it is smaller than the sum of its proper divisors (25199696).

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

22297264 is a wasteful number, since it uses less digits than its factorization.

22297264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1003 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 22297264 is about 4721.9978822528. The cubic root of 22297264 is about 281.4603296476.

The spelling of 22297264 in words is "twenty-two million, two hundred ninety-seven thousand, two hundred sixty-four".