23540208 has 20 divisors (see below), whose sum is σ = 60812328. Its totient is φ = 7846720.

The previous prime is 23540207. The next prime is 23540219. The reversal of 23540208 is 80204532.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23540203) 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 3 ways as a sum of consecutive naturals, for example, 245163 + ... + 245258.

Almost surely, 2^23540208 is an apocalyptic number.

It is an amenable number.

23540208 is an abundant number, since it is smaller than the sum of its proper divisors (37272120).

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

23540208 is a wasteful number, since it uses less digits than its factorization.

23540208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490432 (or 490426 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 23540208 is about 4851.8252235628. The cubic root of 23540208 is about 286.5959828132.

The spelling of 23540208 in words is "twenty-three million, five hundred forty thousand, two hundred eight".