23994780 has 24 divisors (see below), whose sum is σ = 67185552. Its totient is φ = 6398592.

The previous prime is 23994767. The next prime is 23994787. The reversal of 23994780 is 8749932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23994787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199897 + ... + 200016.

It is an arithmetic number, because the mean of its divisors is an integer number (2799398).

Almost surely, 2^23994780 is an apocalyptic number.

23994780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23994780 is an abundant number, since it is smaller than the sum of its proper divisors (43190772).

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

23994780 is a wasteful number, since it uses less digits than its factorization.

23994780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399925 (or 399923 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 23994780 is about 4898.4466925751. The cubic root of 23994780 is about 288.4289999264.

The spelling of 23994780 in words is "twenty-three million, nine hundred ninety-four thousand, seven hundred eighty".