22013744 has 20 divisors (see below), whose sum is σ = 42814224. Its totient is φ = 10964928.

The previous prime is 22013743. The next prime is 22013753. The reversal of 22013744 is 44731022.

It is not an unprimeable number, because it can be changed into a prime (22013743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949 + ... + 6915.

Almost surely, 2^22013744 is an apocalyptic number.

It is an amenable number.

22013744 is a deficient number, since it is larger than the sum of its proper divisors (20800480).

22013744 is a wasteful number, since it uses less digits than its factorization.

22013744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252 (or 5246 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22013744 is about 4691.8806463933. The cubic root of 22013744 is about 280.2622712650.

Adding to 22013744 its reverse (44731022), we get a palindrome (66744766).

The spelling of 22013744 in words is "twenty-two million, thirteen thousand, seven hundred forty-four".