22439242 has 16 divisors (see below), whose sum is σ = 39507840. Its totient is φ = 9356688.

The previous prime is 22439231. The next prime is 22439281. The reversal of 22439242 is 24293422.

It is a self number, because there is not a number n which added to its sum of digits gives 22439242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21142 + ... + 22177.

It is an arithmetic number, because the mean of its divisors is an integer number (2469240).

Almost surely, 2^22439242 is an apocalyptic number.

22439242 is a deficient number, since it is larger than the sum of its proper divisors (17068598).

22439242 is a wasteful number, since it uses less digits than its factorization.

22439242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43365.

The product of its digits is 6912, while the sum is 28.

The square root of 22439242 is about 4737.0077052924. The cubic root of 22439242 is about 282.0564664017.

The spelling of 22439242 in words is "twenty-two million, four hundred thirty-nine thousand, two hundred forty-two".