22885681 has 8 divisors (see below), whose sum is σ = 28167104. Its totient is φ = 18107280.

The previous prime is 22885661. The next prime is 22885697. The reversal of 22885681 is 18658822.

It is a happy number.

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 22885681 - 2⁹ = 22885169 is a prime.

It is a super-2 number, since 2×22885681² = 1047508789667522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22885631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125655 + ... + 125836.

It is an arithmetic number, because the mean of its divisors is an integer number (3520888).

Almost surely, 2^22885681 is an apocalyptic number.

It is an amenable number.

22885681 is a deficient number, since it is larger than the sum of its proper divisors (5281423).

22885681 is a wasteful number, since it uses less digits than its factorization.

22885681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251511.

The product of its digits is 61440, while the sum is 40.

The square root of 22885681 is about 4783.8980967408. The cubic root of 22885681 is about 283.9147441306.

The spelling of 22885681 in words is "twenty-two million, eight hundred eighty-five thousand, six hundred eighty-one".