22397296 has 40 divisors (see below), whose sum is σ = 46671120. Its totient is φ = 10374144.

The previous prime is 22397273. The next prime is 22397311. The reversal of 22397296 is 69279322.

22397296 = T₃₆₈ + T₃₆₉ + ... + T₅₆₈.

It is a super-2 number, since 2×22397296² = 1003277736223232, which contains 22 as substring.

It is a congruent number.

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, 17610 + ... + 18838.

It is an arithmetic number, because the mean of its divisors is an integer number (1166778).

Almost surely, 2^22397296 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 22397296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23335560).

22397296 is an abundant number, since it is smaller than the sum of its proper divisors (24273824).

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

22397296 is a wasteful number, since it uses less digits than its factorization.

22397296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1315 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 22397296 is about 4732.5781557202. The cubic root of 22397296 is about 281.8806060311.

The spelling of 22397296 in words is "twenty-two million, three hundred ninety-seven thousand, two hundred ninety-six".