23868720 has 60 divisors (see below), whose sum is σ = 80161536. Its totient is φ = 6364800.

The previous prime is 23868707. The next prime is 23868739. The reversal of 23868720 is 2786832.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15856 + ... + 17295.

Almost surely, 2^23868720 is an apocalyptic number.

23868720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23868720 is an abundant number, since it is smaller than the sum of its proper divisors (56292816).

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

23868720 is a wasteful number, since it uses less digits than its factorization.

23868720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33170 (or 33161 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 23868720 is about 4885.5624036543. The cubic root of 23868720 is about 287.9230118288.

The spelling of 23868720 in words is "twenty-three million, eight hundred sixty-eight thousand, seven hundred twenty".