22942657 has 4 divisors (see below), whose sum is σ = 23502276. Its totient is φ = 22383040.

The previous prime is 22942643. The next prime is 22942669. The reversal of 22942657 is 75624922.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10439361 + 12503296 = 3231^2 + 3536^2 .

It is a cyclic number.

It is not a de Polignac number, because 22942657 - 2¹¹ = 22940609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22942457) 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, 279748 + ... + 279829.

It is an arithmetic number, because the mean of its divisors is an integer number (5875569).

Almost surely, 2^22942657 is an apocalyptic number.

It is an amenable number.

22942657 is a deficient number, since it is larger than the sum of its proper divisors (559619).

22942657 is an equidigital number, since it uses as much as digits as its factorization.

22942657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559618.

The product of its digits is 60480, while the sum is 37.

The square root of 22942657 is about 4789.8493713268. The cubic root of 22942657 is about 284.1501594667.

The spelling of 22942657 in words is "twenty-two million, nine hundred forty-two thousand, six hundred fifty-seven".