15240120 has 64 divisors (see below), whose sum is σ = 52254720. Its totient is φ = 3483264.

The previous prime is 15240107. The next prime is 15240131. The reversal of 15240120 is 2104251.

15240120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15240120² = 464522515228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 15240120.

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, 8232 + ... + 9911.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 2^15240120 is an apocalyptic number.

15240120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15240120 is an abundant number, since it is smaller than the sum of its proper divisors (37014600).

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

15240120 is a wasteful number, since it uses less digits than its factorization.

15240120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18164 (or 18160 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 15240120 is about 3903.8596286240. The cubic root of 15240120 is about 247.9302179664.

Adding to 15240120 its reverse (2104251), we get a palindrome (17344371).

The spelling of 15240120 in words is "fifteen million, two hundred forty thousand, one hundred twenty".