23489280 has 108 divisors (see below), whose sum is σ = 81310320. Its totient is φ = 6260736.

The previous prime is 23489261. The next prime is 23489287. The reversal of 23489280 is 8298432.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23489287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10501 + ... + 12539.

Almost surely, 2^23489280 is an apocalyptic number.

23489280 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 23489280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40655160).

23489280 is an abundant number, since it is smaller than the sum of its proper divisors (57821040).

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

23489280 is a wasteful number, since it uses less digits than its factorization.

23489280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 23489280 is about 4846.5740477166. The cubic root of 23489280 is about 286.3891551505.

It can be divided in two parts, 2348 and 9280, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 23489280 in words is "twenty-three million, four hundred eighty-nine thousand, two hundred eighty".