23985400 has 48 divisors (see below), whose sum is σ = 57083400. Its totient is φ = 9367680.

The previous prime is 23985373. The next prime is 23985431. The reversal of 23985400 is 458932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7206 + ... + 9994.

Almost surely, 2^23985400 is an apocalyptic number.

23985400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23985400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28541700).

23985400 is an abundant number, since it is smaller than the sum of its proper divisors (33098000).

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

23985400 is a wasteful number, since it uses less digits than its factorization.

23985400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 23985400 is about 4897.4891526169. The cubic root of 23985400 is about 288.3914109642.

The spelling of 23985400 in words is "twenty-three million, nine hundred eighty-five thousand, four hundred".