22013684 has 24 divisors (see below), whose sum is σ = 48030528. Its totient is φ = 8576640.

The previous prime is 22013683. The next prime is 22013687. The reversal of 22013684 is 48631022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35429 + ... + 36044.

It is an arithmetic number, because the mean of its divisors is an integer number (2001272).

Almost surely, 2^22013684 is an apocalyptic number.

It is an amenable number.

22013684 is an abundant number, since it is smaller than the sum of its proper divisors (26016844).

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

22013684 is a wasteful number, since it uses less digits than its factorization.

22013684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71495 (or 71493 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 22013684 is about 4691.8742523644. The cubic root of 22013684 is about 280.2620166400.

It can be divided in two parts, 2201 and 3684, that added together give a palindrome (5885).

The spelling of 22013684 in words is "twenty-two million, thirteen thousand, six hundred eighty-four".