23451328 has 28 divisors (see below), whose sum is σ = 47306992. Its totient is φ = 11531520.

The previous prime is 23451317. The next prime is 23451341. The reversal of 23451328 is 82315432.

It is a junction number, because it is equal to n+sod(n) for n = 23451296 and 23451305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901 + ... + 6907.

Almost surely, 2^23451328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23451328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23653496).

23451328 is an abundant number, since it is smaller than the sum of its proper divisors (23855664).

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

23451328 is an equidigital number, since it uses as much as digits as its factorization.

23451328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080 (or 6070 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 23451328 is about 4842.6571218702. The cubic root of 23451328 is about 286.2348308482.

The spelling of 23451328 in words is "twenty-three million, four hundred fifty-one thousand, three hundred twenty-eight".