22043739 has 4 divisors (see below), whose sum is σ = 29391656. Its totient is φ = 14695824.

The previous prime is 22043731. The next prime is 22043761. The reversal of 22043739 is 93734022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22043739 - 2³ = 22043731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22043731) 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, 3673954 + ... + 3673959.

It is an arithmetic number, because the mean of its divisors is an integer number (7347914).

Almost surely, 2^22043739 is an apocalyptic number.

22043739 is a deficient number, since it is larger than the sum of its proper divisors (7347917).

22043739 is an equidigital number, since it uses as much as digits as its factorization.

22043739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7347916.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 22043739 is about 4695.0760377229. The cubic root of 22043739 is about 280.3895046821.

The spelling of 22043739 in words is "twenty-two million, forty-three thousand, seven hundred thirty-nine".