15116240 has 20 divisors (see below), whose sum is σ = 35145444. Its totient is φ = 6046464.

The previous prime is 15116201. The next prime is 15116261. The reversal of 15116240 is 4261151.

It can be written as a sum of positive squares in 2 ways, for example, as 3474496 + 11641744 = 1864^2 + 3412^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94397 + ... + 94556.

Almost surely, 2^15116240 is an apocalyptic number.

15116240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15116240 is an abundant number, since it is smaller than the sum of its proper divisors (20029204).

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

15116240 is a wasteful number, since it uses less digits than its factorization.

15116240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188966 (or 188960 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 15116240 is about 3887.9609051532. The cubic root of 15116240 is about 247.2566188914.

Adding to 15116240 its reverse (4261151), we get a palindrome (19377391).

The spelling of 15116240 in words is "fifteen million, one hundred sixteen thousand, two hundred forty".