23493645 has 40 divisors (see below), whose sum is σ = 48136704. Its totient is φ = 10738656.

The previous prime is 23493611. The next prime is 23493661. The reversal of 23493645 is 54639432.

23493645 is a `hidden beast` number, since 2 + 3 + 4 + 9 + 3 + 645 = 666.

It is not a de Polignac number, because 23493645 - 2⁶ = 23493581 is a prime.

It is a super-3 number, since 3×23493645³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 1309 + ... + 6978.

Almost surely, 2^23493645 is an apocalyptic number.

It is an amenable number.

23493645 is an abundant number, since it is smaller than the sum of its proper divisors (24643059).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23493645 is an equidigital number, since it uses as much as digits as its factorization.

23493645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8311 (or 8302 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 23493645 is about 4847.0243448945. The cubic root of 23493645 is about 286.4068938982.

The spelling of 23493645 in words is "twenty-three million, four hundred ninety-three thousand, six hundred forty-five".