22057245 has 64 divisors (see below), whose sum is σ = 47485440. Its totient is φ = 9483264.

The previous prime is 22057229. The next prime is 22057267. The reversal of 22057245 is 54275022.

It is not a de Polignac number, because 22057245 - 2⁴ = 22057229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15379 + ... + 16751.

It is an arithmetic number, because the mean of its divisors is an integer number (741960).

Almost surely, 2^22057245 is an apocalyptic number.

It is an amenable number.

22057245 is an abundant number, since it is smaller than the sum of its proper divisors (25428195).

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

22057245 is a wasteful number, since it uses less digits than its factorization.

22057245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1405 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 22057245 is about 4696.5141328436. The cubic root of 22057245 is about 280.4467570310.

It can be divided in two parts, 220572 and 45, that multiplied together give a triangular number (9925740 = T₄₄₅₅).

The spelling of 22057245 in words is "twenty-two million, fifty-seven thousand, two hundred forty-five".