23313645 has 48 divisors (see below), whose sum is σ = 42112512. Its totient is φ = 11923200.

The previous prime is 23313629. The next prime is 23313671. The reversal of 23313645 is 54631332.

It is a happy number.

23313645 is a `hidden beast` number, since 2 + 3 + 3 + 13 + 645 = 666.

It is not a de Polignac number, because 23313645 - 2⁴ = 23313629 is a prime.

It is a super-3 number, since 3×23313645³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154320 + ... + 154470.

It is an arithmetic number, because the mean of its divisors is an integer number (877344).

Almost surely, 2^23313645 is an apocalyptic number.

It is an amenable number.

23313645 is a deficient number, since it is larger than the sum of its proper divisors (18798867).

23313645 is a wasteful number, since it uses less digits than its factorization.

23313645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 279 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 23313645 is about 4828.4205492065. The cubic root of 23313645 is about 285.6735684238.

Adding to 23313645 its reverse (54631332), we get a palindrome (77944977).

The spelling of 23313645 in words is "twenty-three million, three hundred thirteen thousand, six hundred forty-five".