23003280 has 120 divisors (see below), whose sum is σ = 79155648. Its totient is φ = 5983488.

The previous prime is 23003269. The next prime is 23003287. The reversal of 23003280 is 8230032.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23003287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30589 + ... + 31331.

Almost surely, 2^23003280 is an apocalyptic number.

23003280 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 23003280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39577824).

23003280 is an abundant number, since it is smaller than the sum of its proper divisors (56152368).

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

23003280 is a wasteful number, since it uses less digits than its factorization.

23003280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23003280 is about 4796.1734747609. The cubic root of 23003280 is about 284.4002160146.

The spelling of 23003280 in words is "twenty-three million, three thousand, two hundred eighty".