15028140 has 72 divisors (see below), whose sum is σ = 43419600. Its totient is φ = 3883520.

The previous prime is 15028133. The next prime is 15028151. The reversal of 15028140 is 4182051.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100786 + ... + 100934.

It is an arithmetic number, because the mean of its divisors is an integer number (603050).

Almost surely, 2^15028140 is an apocalyptic number.

15028140 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 15028140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21709800).

15028140 is an abundant number, since it is smaller than the sum of its proper divisors (28391460).

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

15028140 is a wasteful number, since it uses less digits than its factorization.

15028140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 15028140 is about 3876.6145023719. The cubic root of 15028140 is about 246.7753315560.

The spelling of 15028140 in words is "fifteen million, twenty-eight thousand, one hundred forty".