22000338 has 12 divisors (see below), whose sum is σ = 47667438. Its totient is φ = 7333440.

The previous prime is 22000327. The next prime is 22000339. The reversal of 22000338 is 83300022.

It can be written as a sum of positive squares in only one way, i.e., 13860729 + 8139609 = 3723^2 + 2853^2 .

It is a super-2 number, since 2×22000338² = 968029744228488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1222241 = 22000338 / (2 + 2 + 0 + 0 + 0 + 3 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 22000338.

It is not an unprimeable number, because it can be changed into a prime (22000339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611103 + ... + 611138.

Almost surely, 2^22000338 is an apocalyptic number.

22000338 is an abundant number, since it is smaller than the sum of its proper divisors (25667100).

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

22000338 is a wasteful number, since it uses less digits than its factorization.

22000338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222249 (or 1222246 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22000338 is about 4690.4517906061. The cubic root of 22000338 is about 280.2053680420.

The spelling of 22000338 in words is "twenty-two million, three hundred thirty-eight", and thus it is an aban number.