22405942 has 16 divisors (see below), whose sum is σ = 37174032. Its totient is φ = 10061280.

The previous prime is 22405937. The next prime is 22405961. The reversal of 22405942 is 24950422.

It is a self number, because there is not a number n which added to its sum of digits gives 22405942.

It is a congruent number.

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, 10684 + ... + 12607.

It is an arithmetic number, because the mean of its divisors is an integer number (2323377).

Almost surely, 2^22405942 is an apocalyptic number.

22405942 is a deficient number, since it is larger than the sum of its proper divisors (14768090).

22405942 is a wasteful number, since it uses less digits than its factorization.

22405942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23343.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 22405942 is about 4733.4915231782. The cubic root of 22405942 is about 281.9168727034.

The spelling of 22405942 in words is "twenty-two million, four hundred five thousand, nine hundred forty-two".