22418934 has 12 divisors (see below), whose sum is σ = 44861076. Its totient is φ = 7469112.

The previous prime is 22418933. The next prime is 22418939. The reversal of 22418934 is 43981422.

It is a junction number, because it is equal to n+sod(n) for n = 22418895 and 22418904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22418933) 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, 10632 + ... + 12564.

It is an arithmetic number, because the mean of its divisors is an integer number (3738423).

Almost surely, 2^22418934 is an apocalyptic number.

22418934 is an abundant number, since it is smaller than the sum of its proper divisors (22442142).

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

22418934 is an frugal number, since it uses more digits than its factorization.

22418934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871 (or 1938 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 22418934 is about 4734.8636727999. The cubic root of 22418934 is about 281.9713516493.

Multiplying 22418934 by its product of digits (13824), we get a square (309919343616 = 556704²).

It can be divided in two parts, 2241 and 8934, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 22418934 in words is "twenty-two million, four hundred eighteen thousand, nine hundred thirty-four".