5815240 has 16 divisors (see below), whose sum is σ = 13084380. Its totient is φ = 2326080.

The previous prime is 5815231. The next prime is 5815291. The reversal of 5815240 is 425185.

It can be written as a sum of positive squares in 2 ways, for example, as 5579044 + 236196 = 2362^2 + 486^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72651 + ... + 72730.

Almost surely, 2^5815240 is an apocalyptic number.

It is an amenable number.

5815240 is an abundant number, since it is smaller than the sum of its proper divisors (7269140).

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

5815240 is a wasteful number, since it uses less digits than its factorization.

5815240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145392 (or 145388 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 5815240 is about 2411.4808728248. The cubic root of 5815240 is about 179.8274065777.

The spelling of 5815240 in words is "five million, eight hundred fifteen thousand, two hundred forty".