23285400 has 72 divisors (see below), whose sum is σ = 72553020. Its totient is φ = 6177920.

The previous prime is 23285399. The next prime is 23285429. The reversal of 23285400 is 458232.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 118102 + ... + 118298.

Almost surely, 2^23285400 is an apocalyptic number.

23285400 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 23285400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36276510).

23285400 is an abundant number, since it is smaller than the sum of its proper divisors (49267620).

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

23285400 is a wasteful number, since it uses less digits than its factorization.

23285400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 23285400 is about 4825.4947932829. The cubic root of 23285400 is about 285.5581551731.

Multiplying 23285400 by its sum of digits (24), we get a square (558849600 = 23640²).

23285400 divided by its sum of digits (24) gives a square (970225 = 985²).

The spelling of 23285400 in words is "twenty-three million, two hundred eighty-five thousand, four hundred".