22942939 has 4 divisors (see below), whose sum is σ = 22957480. Its totient is φ = 22928400.

The previous prime is 22942919. The next prime is 22942949. The reversal of 22942939 is 93924922.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22942939 - 2⁹ = 22942427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22942919) 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, 4569 + ... + 8170.

It is an arithmetic number, because the mean of its divisors is an integer number (5739370).

Almost surely, 2^22942939 is an apocalyptic number.

22942939 is a deficient number, since it is larger than the sum of its proper divisors (14541).

22942939 is a wasteful number, since it uses less digits than its factorization.

22942939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14540.

The product of its digits is 69984, while the sum is 40.

The square root of 22942939 is about 4789.8788084877. The cubic root of 22942939 is about 284.1513236738.

The spelling of 22942939 in words is "twenty-two million, nine hundred forty-two thousand, nine hundred thirty-nine".