22690757 has 4 divisors (see below), whose sum is σ = 22709280. Its totient is φ = 22672236.

The previous prime is 22690747. The next prime is 22690771. The reversal of 22690757 is 75709622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22690757 - 2⁸ = 22690501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22690757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22690747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7283 + ... + 9920.

It is an arithmetic number, because the mean of its divisors is an integer number (5677320).

Almost surely, 2^22690757 is an apocalyptic number.

It is an amenable number.

22690757 is a deficient number, since it is larger than the sum of its proper divisors (18523).

22690757 is a wasteful number, since it uses less digits than its factorization.

22690757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18522.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 22690757 is about 4763.4816048768. The cubic root of 22690757 is about 283.1063832749.

The spelling of 22690757 in words is "twenty-two million, six hundred ninety thousand, seven hundred fifty-seven".