715240 has 16 divisors (see below), whose sum is σ = 1609380. Its totient is φ = 286080.

The previous prime is 715237. The next prime is 715243. The reversal of 715240 is 42517.

It is an interprime number because it is at equal distance from previous prime (715237) and next prime (715243).

It can be written as a sum of positive squares in 2 ways, for example, as 702244 + 12996 = 838^2 + 114^2 .

It is not an unprimeable number, because it can be changed into a prime (715243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8901 + ... + 8980.

2⁷¹⁵²⁴⁰ is an apocalyptic number.

It is an amenable number.

715240 is an abundant number, since it is smaller than the sum of its proper divisors (894140).

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

715240 is a wasteful number, since it uses less digits than its factorization.

715240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17892 (or 17888 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 715240 is about 845.7186293325. The cubic root of 715240 is about 89.4301442988.

Adding to 715240 its reverse (42517), we get a palindrome (757757).

The spelling of 715240 in words is "seven hundred fifteen thousand, two hundred forty".