15240836 has 12 divisors (see below), whose sum is σ = 28723212. Its totient is φ = 7034208.

The previous prime is 15240833. The next prime is 15240851. The reversal of 15240836 is 63804251.

It can be written as a sum of positive squares in 2 ways, for example, as 846400 + 14394436 = 920^2 + 3794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15240799 and 15240808.

It is not an unprimeable number, because it can be changed into a prime (15240833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146495 + ... + 146598.

It is an arithmetic number, because the mean of its divisors is an integer number (2393601).

Almost surely, 2^15240836 is an apocalyptic number.

It is an amenable number.

15240836 is a deficient number, since it is larger than the sum of its proper divisors (13482376).

15240836 is a wasteful number, since it uses less digits than its factorization.

15240836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293110 (or 293108 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 15240836 is about 3903.9513316639. The cubic root of 15240836 is about 247.9341005967.

The spelling of 15240836 in words is "fifteen million, two hundred forty thousand, eight hundred thirty-six".