22315844 has 12 divisors (see below), whose sum is σ = 39160044. Its totient is φ = 11127264.

The previous prime is 22315831. The next prime is 22315859. The reversal of 22315844 is 44851322.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8773444 + 13542400 = 2962^2 + 3680^2 .

It is a super-3 number, since 3×22315844³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5987 + ... + 8970.

It is an arithmetic number, because the mean of its divisors is an integer number (3263337).

Almost surely, 2^22315844 is an apocalyptic number.

It is an amenable number.

22315844 is a deficient number, since it is larger than the sum of its proper divisors (16844200).

22315844 is a wasteful number, since it uses less digits than its factorization.

22315844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15334 (or 15332 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 22315844 is about 4723.9648601572. The cubic root of 22315844 is about 281.5384869352.

The spelling of 22315844 in words is "twenty-two million, three hundred fifteen thousand, eight hundred forty-four".