15013240 has 64 divisors (see below), whose sum is σ = 37260000. Its totient is φ = 5399040.

The previous prime is 15013237. The next prime is 15013247. The reversal of 15013240 is 4231051.

15013240 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 not an unprimeable number, because it can be changed into a prime (15013247) 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, 65446 + ... + 65674.

Almost surely, 2^15013240 is an apocalyptic number.

15013240 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 15013240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18630000).

15013240 is an abundant number, since it is smaller than the sum of its proper divisors (22246760).

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

15013240 is a wasteful number, since it uses less digits than its factorization.

15013240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 15013240 is about 3874.6922458435. The cubic root of 15013240 is about 246.6937475340.

Adding to 15013240 its reverse (4231051), we get a palindrome (19244291).

The spelling of 15013240 in words is "fifteen million, thirteen thousand, two hundred forty".