22302681 has 16 divisors (see below), whose sum is σ = 30809856. Its totient is φ = 14340816.

The previous prime is 22302677. The next prime is 22302701. The reversal of 22302681 is 18620322.

It is not a de Polignac number, because 22302681 - 2² = 22302677 is a prime.

It is a super-2 number, since 2×22302681² = 994819159575522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22302481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9666 + ... + 11748.

It is an arithmetic number, because the mean of its divisors is an integer number (1925616).

Almost surely, 2^22302681 is an apocalyptic number.

It is an amenable number.

22302681 is a deficient number, since it is larger than the sum of its proper divisors (8507175).

22302681 is a wasteful number, since it uses less digits than its factorization.

22302681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22302681 is about 4722.5714393750. The cubic root of 22302681 is about 281.4831208915.

The spelling of 22302681 in words is "twenty-two million, three hundred two thousand, six hundred eighty-one".