22864481 has 4 divisors (see below), whose sum is σ = 23090964. Its totient is φ = 22638000.

The previous prime is 22864477. The next prime is 22864489. The reversal of 22864481 is 18446822.

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 17181025 + 5683456 = 4145^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 22864481 - 2² = 22864477 is a prime.

It is a super-2 number, since 2×22864481² = 1045568982798722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22864489) 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, 113090 + ... + 113291.

It is an arithmetic number, because the mean of its divisors is an integer number (5772741).

Almost surely, 2^22864481 is an apocalyptic number.

It is an amenable number.

22864481 is a deficient number, since it is larger than the sum of its proper divisors (226483).

22864481 is a wasteful number, since it uses less digits than its factorization.

22864481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226482.

The product of its digits is 24576, while the sum is 35.

The square root of 22864481 is about 4781.6818171016. The cubic root of 22864481 is about 283.8270495283.

The spelling of 22864481 in words is "twenty-two million, eight hundred sixty-four thousand, four hundred eighty-one".