23725140 has 48 divisors (see below), whose sum is σ = 68232192. Its totient is φ = 6155136.

The previous prime is 23725127. The next prime is 23725171. The reversal of 23725140 is 4152732.

It is a self number, because there is not a number n which added to its sum of digits gives 23725140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3124 + ... + 7563.

It is an arithmetic number, because the mean of its divisors is an integer number (1421504).

Almost surely, 2^23725140 is an apocalyptic number.

23725140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23725140 is an abundant number, since it is smaller than the sum of its proper divisors (44507052).

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

23725140 is a wasteful number, since it uses less digits than its factorization.

23725140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10736 (or 10734 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 23725140 is about 4870.8459224246. The cubic root of 23725140 is about 287.3445258938.

Adding to 23725140 its reverse (4152732), we get a palindrome (27877872).

The spelling of 23725140 in words is "twenty-three million, seven hundred twenty-five thousand, one hundred forty".