23840685 has 24 divisors (see below), whose sum is σ = 45081504. Its totient is φ = 11558880.

The previous prime is 23840669. The next prime is 23840693. The reversal of 23840685 is 58604832.

23840685 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 23840685 - 2⁴ = 23840669 is a prime.

It is a super-2 number, since 2×23840685² = 1136756522538450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23587 + ... + 24576.

It is an arithmetic number, because the mean of its divisors is an integer number (1878396).

Almost surely, 2^23840685 is an apocalyptic number.

It is an amenable number.

23840685 is a deficient number, since it is larger than the sum of its proper divisors (21240819).

23840685 is a wasteful number, since it uses less digits than its factorization.

23840685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48185 (or 48182 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 23840685 is about 4882.6923925228. The cubic root of 23840685 is about 287.8102410282.

The spelling of 23840685 in words is "twenty-three million, eight hundred forty thousand, six hundred eighty-five".