22888681 has 8 divisors (see below), whose sum is σ = 24890760. Its totient is φ = 20959488.

The previous prime is 22888643. The next prime is 22888687. The reversal of 22888681 is 18688822.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17640000 + 5248681 = 4200^2 + 2291^2 .

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 22888681 - 2¹³ = 22880489 is a prime.

It is a super-2 number, since 2×22888681² = 1047783435839522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22888687) 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, 17566 + ... + 18823.

It is an arithmetic number, because the mean of its divisors is an integer number (3111345).

Almost surely, 2^22888681 is an apocalyptic number.

It is an amenable number.

22888681 is a deficient number, since it is larger than the sum of its proper divisors (2002079).

22888681 is a wasteful number, since it uses less digits than its factorization.

22888681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36443.

The product of its digits is 98304, while the sum is 43.

The square root of 22888681 is about 4784.2116382953. The cubic root of 22888681 is about 283.9271493695.

The spelling of 22888681 in words is "twenty-two million, eight hundred eighty-eight thousand, six hundred eighty-one".