22057544 has 8 divisors (see below), whose sum is σ = 41357910. Its totient is φ = 11028768.

The previous prime is 22057543. The next prime is 22057559. The reversal of 22057544 is 44575022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20593444 + 1464100 = 4538^2 + 1210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22057543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378589 + ... + 1378604.

Almost surely, 2^22057544 is an apocalyptic number.

It is an amenable number.

22057544 is a deficient number, since it is larger than the sum of its proper divisors (19300366).

22057544 is a wasteful number, since it uses less digits than its factorization.

22057544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757199 (or 2757195 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 22057544 is about 4696.5459648554. The cubic root of 22057544 is about 280.4480242367.

The spelling of 22057544 in words is "twenty-two million, fifty-seven thousand, five hundred forty-four".