23638780 has 24 divisors (see below), whose sum is σ = 54154800. Its totient is φ = 8595840.

The previous prime is 23638753. The next prime is 23638801. The reversal of 23638780 is 8783632.

It is a congruent 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, 53505 + ... + 53944.

It is an arithmetic number, because the mean of its divisors is an integer number (2256450).

Almost surely, 2^23638780 is an apocalyptic number.

23638780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23638780 is an abundant number, since it is smaller than the sum of its proper divisors (30516020).

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

23638780 is a wasteful number, since it uses less digits than its factorization.

23638780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107469 (or 107467 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 23638780 is about 4861.9728506029. The cubic root of 23638780 is about 286.9954553380.

The spelling of 23638780 in words is "twenty-three million, six hundred thirty-eight thousand, seven hundred eighty".