22338819 has 24 divisors (see below), whose sum is σ = 33875712. Its totient is φ = 14158320.

The previous prime is 22338791. The next prime is 22338847. The reversal of 22338819 is 91883322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22338791) and next prime (22338847).

It is not a de Polignac number, because 22338819 - 2⁷ = 22338691 is a prime.

It is a super-2 number, since 2×22338819² = 998045668629522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22338419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64204 + ... + 64550.

It is an arithmetic number, because the mean of its divisors is an integer number (1411488).

Almost surely, 2^22338819 is an apocalyptic number.

22338819 is a deficient number, since it is larger than the sum of its proper divisors (11536893).

22338819 is a wasteful number, since it uses less digits than its factorization.

22338819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 684 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 22338819 is about 4726.3959842569. The cubic root of 22338819 is about 281.6350719476.

The spelling of 22338819 in words is "twenty-two million, three hundred thirty-eight thousand, eight hundred nineteen".