22338444 has 24 divisors (see below), whose sum is σ = 52979248. Its totient is φ = 7323840.

The previous prime is 22338427. The next prime is 22338461. The reversal of 22338444 is 44483322.

It is an interprime number because it is at equal distance from previous prime (22338427) and next prime (22338461).

It is a super-2 number, since 2×22338444² = 998012160682272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 14527 + ... + 15990.

Almost surely, 2^22338444 is an apocalyptic number.

It is an amenable number.

22338444 is an abundant number, since it is smaller than the sum of its proper divisors (30640804).

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

22338444 is a wasteful number, since it uses less digits than its factorization.

22338444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30585 (or 30583 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

The square root of 22338444 is about 4726.3563132714. The cubic root of 22338444 is about 281.6334960101.

The spelling of 22338444 in words is "twenty-two million, three hundred thirty-eight thousand, four hundred forty-four".