23632540 has 48 divisors (see below), whose sum is σ = 52383744. Its totient is φ = 8942400.

The previous prime is 23632537. The next prime is 23632573. The reversal of 23632540 is 4523632.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28735 + ... + 29545.

It is an arithmetic number, because the mean of its divisors is an integer number (1091328).

Almost surely, 2^23632540 is an apocalyptic number.

23632540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23632540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26191872).

23632540 is an abundant number, since it is smaller than the sum of its proper divisors (28751204).

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

23632540 is a wasteful number, since it uses less digits than its factorization.

23632540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 23632540 is about 4861.3310934352. The cubic root of 23632540 is about 286.9702000972.

The spelling of 23632540 in words is "twenty-three million, six hundred thirty-two thousand, five hundred forty".