22618434 has 32 divisors (see below), whose sum is σ = 47586240. Its totient is φ = 7156800.

The previous prime is 22618423. The next prime is 22618451. The reversal of 22618434 is 43481622.

It is a super-2 number, since 2×22618434² = 1023187113224712, 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. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9549 + ... + 11679.

It is an arithmetic number, because the mean of its divisors is an integer number (1487070).

Almost surely, 2^22618434 is an apocalyptic number.

22618434 is an abundant number, since it is smaller than the sum of its proper divisors (24967806).

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

22618434 is a wasteful number, since it uses less digits than its factorization.

22618434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226.

The product of its digits is 9216, while the sum is 30.

The square root of 22618434 is about 4755.8841449304. The cubic root of 22618434 is about 282.8052783622.

The spelling of 22618434 in words is "twenty-two million, six hundred eighteen thousand, four hundred thirty-four".