22469681 has 8 divisors (see below), whose sum is σ = 24788904. Its totient is φ = 20234880.

The previous prime is 22469659. The next prime is 22469717. The reversal of 22469681 is 18696422.

It can be written as a sum of positive squares in 4 ways, for example, as 1392400 + 21077281 = 1180^2 + 4591^2 .

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 22469681 - 2¹⁴ = 22453297 is a prime.

It is a super-2 number, since 2×22469681² = 1009773128483522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22469611) 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, 20546 + ... + 21611.

It is an arithmetic number, because the mean of its divisors is an integer number (3098613).

Almost surely, 2^22469681 is an apocalyptic number.

It is an amenable number.

22469681 is a deficient number, since it is larger than the sum of its proper divisors (2319223).

22469681 is a wasteful number, since it uses less digits than its factorization.

22469681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42211.

The product of its digits is 41472, while the sum is 38.

The square root of 22469681 is about 4740.2195096852. The cubic root of 22469681 is about 282.1839460138.

The spelling of 22469681 in words is "twenty-two million, four hundred sixty-nine thousand, six hundred eighty-one".