22657641 has 8 divisors (see below), whose sum is σ = 30379680. Its totient is φ = 15020352.

The previous prime is 22657639. The next prime is 22657643. The reversal of 22657641 is 14675622.

It is an interprime number because it is at equal distance from previous prime (22657639) and next prime (22657643).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22657641 - 2¹ = 22657639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22657643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20560 + ... + 21633.

It is an arithmetic number, because the mean of its divisors is an integer number (3797460).

Almost surely, 2^22657641 is an apocalyptic number.

It is an amenable number.

22657641 is a deficient number, since it is larger than the sum of its proper divisors (7722039).

22657641 is a wasteful number, since it uses less digits than its factorization.

22657641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42375.

The product of its digits is 20160, while the sum is 33.

The square root of 22657641 is about 4760.0043067207. The cubic root of 22657641 is about 282.9685897872.

The spelling of 22657641 in words is "twenty-two million, six hundred fifty-seven thousand, six hundred forty-one".