22645641 has 8 divisors (see below), whose sum is σ = 30274560. Its totient is φ = 15056912.

The previous prime is 22645627. The next prime is 22645657. The reversal of 22645641 is 14654622.

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

It is a cyclic number.

It is not a de Polignac number, because 22645641 - 2¹⁹ = 22121353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22645599 and 22645608.

It is not an unprimeable number, because it can be changed into a prime (22645661) 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, 8706 + ... + 11003.

It is an arithmetic number, because the mean of its divisors is an integer number (3784320).

Almost surely, 2^22645641 is an apocalyptic number.

It is an amenable number.

22645641 is a deficient number, since it is larger than the sum of its proper divisors (7628919).

22645641 is a wasteful number, since it uses less digits than its factorization.

22645641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20095.

The product of its digits is 11520, while the sum is 30.

The square root of 22645641 is about 4758.7436367176. The cubic root of 22645641 is about 282.9186254401.

The spelling of 22645641 in words is "twenty-two million, six hundred forty-five thousand, six hundred forty-one".