23365140 has 48 divisors (see below), whose sum is σ = 69273792. Its totient is φ = 5863936.

The previous prime is 23365127. The next prime is 23365151. The reversal of 23365140 is 4156332.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23365140.

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, 10434 + ... + 12473.

It is an arithmetic number, because the mean of its divisors is an integer number (1443204).

Almost surely, 2^23365140 is an apocalyptic number.

23365140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23365140 is an abundant number, since it is smaller than the sum of its proper divisors (45908652).

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

23365140 is a wasteful number, since it uses less digits than its factorization.

23365140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22936 (or 22934 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 23365140 is about 4833.7500969744. The cubic root of 23365140 is about 285.8837449488.

The spelling of 23365140 in words is "twenty-three million, three hundred sixty-five thousand, one hundred forty".