15270240 has 96 divisors (see below), whose sum is σ = 49805280. Its totient is φ = 3928064.

The previous prime is 15270239. The next prime is 15270251. The reversal of 15270240 is 4207251.

It is a tau number, because it is divible by the number of its divisors (96).

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, 13372 + ... + 14468.

It is an arithmetic number, because the mean of its divisors is an integer number (518805).

Almost surely, 2^15270240 is an apocalyptic number.

15270240 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 15270240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24902640).

15270240 is an abundant number, since it is smaller than the sum of its proper divisors (34535040).

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

15270240 is a wasteful number, since it uses less digits than its factorization.

15270240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 15270240 is about 3907.7154451162. The cubic root of 15270240 is about 248.0934438018.

Adding to 15270240 its reverse (4207251), we get a palindrome (19477491).

The spelling of 15270240 in words is "fifteen million, two hundred seventy thousand, two hundred forty".