740288 has 28 divisors (see below), whose sum is σ = 1508760. Its totient is φ = 360192.

The previous prime is 740287. The next prime is 740303. The reversal of 740288 is 882047.

It is a self number, because there is not a number n which added to its sum of digits gives 740288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740287) 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, 2618 + ... + 2886.

2⁷⁴⁰²⁸⁸ 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 740288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754380).

740288 is an abundant number, since it is smaller than the sum of its proper divisors (768472).

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

740288 is a wasteful number, since it uses less digits than its factorization.

740288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 740288 is about 860.3999070200. The cubic root of 740288 is about 90.4621495513.

The spelling of 740288 in words is "seven hundred forty thousand, two hundred eighty-eight".