23494681 has 16 divisors (see below), whose sum is σ = 27917568. Its totient is φ = 19353600.

The previous prime is 23494673. The next prime is 23494687. The reversal of 23494681 is 18649432.

It is not a de Polignac number, because 23494681 - 2³ = 23494673 is a prime.

It is a super-2 number, since 2×23494681² = 1104000070583522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23494681.

It is not an unprimeable number, because it can be changed into a prime (23494687) 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, 19801 + ... + 20953.

It is an arithmetic number, because the mean of its divisors is an integer number (1744848).

Almost surely, 2^23494681 is an apocalyptic number.

It is an amenable number.

23494681 is a deficient number, since it is larger than the sum of its proper divisors (4422887).

23494681 is a wasteful number, since it uses less digits than its factorization.

23494681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272.

The product of its digits is 41472, while the sum is 37.

The square root of 23494681 is about 4847.1312134086. The cubic root of 23494681 is about 286.4111037342.

The spelling of 23494681 in words is "twenty-three million, four hundred ninety-four thousand, six hundred eighty-one".