22730442 has 16 divisors (see below), whose sum is σ = 51955392. Its totient is φ = 6494400.

The previous prime is 22730431. The next prime is 22730467. The reversal of 22730442 is 24403722.

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, 270559 + ... + 270642.

It is an arithmetic number, because the mean of its divisors is an integer number (3247212).

Almost surely, 2^22730442 is an apocalyptic number.

22730442 is an abundant number, since it is smaller than the sum of its proper divisors (29224950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22730442 is a wasteful number, since it uses less digits than its factorization.

22730442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541213.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 22730442 is about 4767.6453307686. The cubic root of 22730442 is about 283.2713334544.

The spelling of 22730442 in words is "twenty-two million, seven hundred thirty thousand, four hundred forty-two".