23328780 has 24 divisors (see below), whose sum is σ = 65320752. Its totient is φ = 6220992.

The previous prime is 23328763. The next prime is 23328821. The reversal of 23328780 is 8782332.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194347 + ... + 194466.

It is an arithmetic number, because the mean of its divisors is an integer number (2721698).

Almost surely, 2^23328780 is an apocalyptic number.

23328780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23328780 is an abundant number, since it is smaller than the sum of its proper divisors (41991972).

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

23328780 is a wasteful number, since it uses less digits than its factorization.

23328780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388825 (or 388823 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 23328780 is about 4829.9875776238. The cubic root of 23328780 is about 285.7353739197.

The spelling of 23328780 in words is "twenty-three million, three hundred twenty-eight thousand, seven hundred eighty".