15325240 has 64 divisors (see below), whose sum is σ = 40248000. Its totient is φ = 5249664.

The previous prime is 15325237. The next prime is 15325259. The reversal of 15325240 is 4252351.

15325240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 13162 + ... + 14278.

It is an arithmetic number, because the mean of its divisors is an integer number (628875).

Almost surely, 2^15325240 is an apocalyptic number.

15325240 is a gapful number since it is divisible by the number (10) 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 15325240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20124000).

15325240 is an abundant number, since it is smaller than the sum of its proper divisors (24922760).

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

15325240 is a wasteful number, since it uses less digits than its factorization.

15325240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 15325240 is about 3914.7464796587. The cubic root of 15325240 is about 248.3909459992.

Adding to 15325240 its reverse (4252351), we get a palindrome (19577591).

The spelling of 15325240 in words is "fifteen million, three hundred twenty-five thousand, two hundred forty".