23285388 has 54 divisors (see below), whose sum is σ = 63522396. Its totient is φ = 6619536.

The previous prime is 23285377. The next prime is 23285389. The reversal of 23285388 is 88358232.

It is not an unprimeable number, because it can be changed into a prime (23285389) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 116913 + ... + 117111.

Almost surely, 2^23285388 is an apocalyptic number.

23285388 is a gapful number since it is divisible by the number (28) 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 23285388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31761198).

23285388 is an abundant number, since it is smaller than the sum of its proper divisors (40237008).

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

23285388 is a wasteful number, since it uses less digits than its factorization.

23285388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 211 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 23285388 is about 4825.4935498869. The cubic root of 23285388 is about 285.5581061195.

The spelling of 23285388 in words is "twenty-three million, two hundred eighty-five thousand, three hundred eighty-eight".