22690737 has 12 divisors (see below), whose sum is σ = 32828484. Its totient is φ = 15102720.

The previous prime is 22690697. The next prime is 22690747. The reversal of 22690737 is 73709622.

It can be written as a sum of positive squares in 2 ways, for example, as 8785296 + 13905441 = 2964^2 + 3729^2 .

It is not a de Polignac number, because 22690737 - 2²⁴ = 5913521 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 5193 + ... + 8505.

It is an arithmetic number, because the mean of its divisors is an integer number (2735707).

Almost surely, 2^22690737 is an apocalyptic number.

It is an amenable number.

22690737 is a deficient number, since it is larger than the sum of its proper divisors (10137747).

22690737 is a wasteful number, since it uses less digits than its factorization.

22690737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080 (or 4077 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 22690737 is about 4763.4795055715. The cubic root of 22690737 is about 283.1063000967.

The spelling of 22690737 in words is "twenty-two million, six hundred ninety thousand, seven hundred thirty-seven".