740560 has 20 divisors (see below), whose sum is σ = 1721988. Its totient is φ = 296192.

The previous prime is 740549. The next prime is 740561. The reversal of 740560 is 65047.

It can be written as a sum of positive squares in 2 ways, for example, as 138384 + 602176 = 372^2 + 776^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×740560² = 1096858227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740561) 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, 4549 + ... + 4708.

2⁷⁴⁰⁵⁶⁰ is an apocalyptic number.

It is an amenable number.

740560 is an abundant number, since it is smaller than the sum of its proper divisors (981428).

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

740560 is a wasteful number, since it uses less digits than its factorization.

740560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9270 (or 9264 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 740560 is about 860.5579585362. The cubic root of 740560 is about 90.4732275334.

The spelling of 740560 in words is "seven hundred forty thousand, five hundred sixty".