715740 has 48 divisors (see below), whose sum is σ = 2042880. Its totient is φ = 187200.

The previous prime is 715739. The next prime is 715753. The reversal of 715740 is 47517.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 715740.

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 15 ways as a sum of consecutive naturals, for example, 4665 + ... + 4815.

It is an arithmetic number, because the mean of its divisors is an integer number (42560).

2⁷¹⁵⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 715740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021440).

715740 is an abundant number, since it is smaller than the sum of its proper divisors (1327140).

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

715740 is a wasteful number, since it uses less digits than its factorization.

715740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 715740 is about 846.0141842783. The cubic root of 715740 is about 89.4509786372.

Subtracting from 715740 its sum of digits (24), we obtain a square (715716 = 846²).

The spelling of 715740 in words is "seven hundred fifteen thousand, seven hundred forty".