23626540 has 24 divisors (see below), whose sum is σ = 56704032. Its totient is φ = 8100480.

The previous prime is 23626529. The next prime is 23626553. The reversal of 23626540 is 4562632.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 23626499 and 23626508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84241 + ... + 84520.

It is an arithmetic number, because the mean of its divisors is an integer number (2362668).

Almost surely, 2^23626540 is an apocalyptic number.

23626540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23626540 is an abundant number, since it is smaller than the sum of its proper divisors (33077492).

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

23626540 is a wasteful number, since it uses less digits than its factorization.

23626540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168777 (or 168775 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 23626540 is about 4860.7139393303. The cubic root of 23626540 is about 286.9459120191.

The spelling of 23626540 in words is "twenty-three million, six hundred twenty-six thousand, five hundred forty".