22057742 has 12 divisors (see below), whose sum is σ = 38488680. Its totient is φ = 9453276.

The previous prime is 22057733. The next prime is 22057747. The reversal of 22057742 is 24775022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22057747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112442 + ... + 112637.

It is an arithmetic number, because the mean of its divisors is an integer number (3207390).

Almost surely, 2^22057742 is an apocalyptic number.

22057742 is a deficient number, since it is larger than the sum of its proper divisors (16430938).

22057742 is a wasteful number, since it uses less digits than its factorization.

22057742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225095 (or 225088 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 22057742 is about 4696.5670441291. The cubic root of 22057742 is about 280.4488633833.

The spelling of 22057742 in words is "twenty-two million, fifty-seven thousand, seven hundred forty-two".