23528280 has 64 divisors (see below), whose sum is σ = 73029600. Its totient is φ = 6056960.

The previous prime is 23528279. The next prime is 23528293. The reversal of 23528280 is 8282532.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100 + ... + 6860.

Almost surely, 2^23528280 is an apocalyptic number.

23528280 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 23528280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36514800).

23528280 is an abundant number, since it is smaller than the sum of its proper divisors (49501320).

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

23528280 is a wasteful number, since it uses less digits than its factorization.

23528280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804 (or 6800 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 23528280 is about 4850.5958396882. The cubic root of 23528280 is about 286.5475678566.

The spelling of 23528280 in words is "twenty-three million, five hundred twenty-eight thousand, two hundred eighty".