740680 has 16 divisors (see below), whose sum is σ = 1666620. Its totient is φ = 296256.

The previous prime is 740671. The next prime is 740681. The reversal of 740680 is 86047.

It can be written as a sum of positive squares in 2 ways, for example, as 715716 + 24964 = 846^2 + 158^2 .

It is not an unprimeable number, because it can be changed into a prime (740681) by changing a digit.

740680 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9219 + ... + 9298.

2⁷⁴⁰⁶⁸⁰ is an apocalyptic number.

It is an amenable number.

740680 is an abundant number, since it is smaller than the sum of its proper divisors (925940).

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

740680 is a wasteful number, since it uses less digits than its factorization.

740680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18528 (or 18524 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 740680 is about 860.6276779189. The cubic root of 740680 is about 90.4781140162.

The spelling of 740680 in words is "seven hundred forty thousand, six hundred eighty".