23313528 has 128 divisors (see below), whose sum is σ = 78451200. Its totient is φ = 6262272.

The previous prime is 23313509. The next prime is 23313533. The reversal of 23313528 is 82531332.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25251 + ... + 26157.

It is an arithmetic number, because the mean of its divisors is an integer number (612900).

Almost surely, 2^23313528 is an apocalyptic number.

23313528 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 23313528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39225600).

23313528 is an abundant number, since it is smaller than the sum of its proper divisors (55137672).

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

23313528 is a wasteful number, since it uses less digits than its factorization.

23313528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 936 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 23313528 is about 4828.4084334281. The cubic root of 23313528 is about 285.6730905368.

The spelling of 23313528 in words is "twenty-three million, three hundred thirteen thousand, five hundred twenty-eight".