23281460 has 48 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 8749440.

The previous prime is 23281457. The next prime is 23281463. The reversal of 23281460 is 6418232.

It is an interprime number because it is at equal distance from previous prime (23281457) and next prime (23281463).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23281463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74705 + ... + 75015.

It is an arithmetic number, because the mean of its divisors is an integer number (1081080).

Almost surely, 2^23281460 is an apocalyptic number.

23281460 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 23281460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25945920).

23281460 is an abundant number, since it is smaller than the sum of its proper divisors (28610380).

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

23281460 is a wasteful number, since it uses less digits than its factorization.

23281460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 23281460 is about 4825.0865277215. The cubic root of 23281460 is about 285.5420483337.

Adding to 23281460 its reverse (6418232), we get a palindrome (29699692).

The spelling of 23281460 in words is "twenty-three million, two hundred eighty-one thousand, four hundred sixty".