22057698 has 32 divisors (see below), whose sum is σ = 48799296. Its totient is φ = 6602688.

The previous prime is 22057697. The next prime is 22057723. The reversal of 22057698 is 89675022.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (22057697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936 + ... + 6707.

It is an arithmetic number, because the mean of its divisors is an integer number (1524978).

Almost surely, 2^22057698 is an apocalyptic number.

22057698 is an abundant number, since it is smaller than the sum of its proper divisors (26741598).

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

22057698 is a wasteful number, since it uses less digits than its factorization.

22057698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7698.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 22057698 is about 4696.5623598543. The cubic root of 22057698 is about 280.4486769067.

The spelling of 22057698 in words is "twenty-two million, fifty-seven thousand, six hundred ninety-eight".