23536540 has 12 divisors (see below), whose sum is σ = 49426776. Its totient is φ = 9414608.

The previous prime is 23536537. The next prime is 23536547. The reversal of 23536540 is 4563532.

It is a junction number, because it is equal to n+sod(n) for n = 23536499 and 23536508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23536547) 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, 588394 + ... + 588433.

It is an arithmetic number, because the mean of its divisors is an integer number (4118898).

Almost surely, 2^23536540 is an apocalyptic number.

23536540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23536540 is an abundant number, since it is smaller than the sum of its proper divisors (25890236).

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

23536540 is a wasteful number, since it uses less digits than its factorization.

23536540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176836 (or 1176834 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 23536540 is about 4851.4472067621. The cubic root of 23536540 is about 286.5810963875.

The spelling of 23536540 in words is "twenty-three million, five hundred thirty-six thousand, five hundred forty".