22013739 has 12 divisors (see below), whose sum is σ = 34688472. Its totient is φ = 13341600.

The previous prime is 22013729. The next prime is 22013743. The reversal of 22013739 is 93731022.

It is not a de Polignac number, because 22013739 - 2⁷ = 22013611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22013729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111082 + ... + 111279.

It is an arithmetic number, because the mean of its divisors is an integer number (2890706).

Almost surely, 2^22013739 is an apocalyptic number.

22013739 is a deficient number, since it is larger than the sum of its proper divisors (12674733).

22013739 is a wasteful number, since it uses less digits than its factorization.

22013739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222378 (or 222375 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 22013739 is about 4691.8801135579. The cubic root of 22013739 is about 280.2622500463.

The spelling of 22013739 in words is "twenty-two million, thirteen thousand, seven hundred thirty-nine".