740784 has 80 divisors (see below), whose sum is σ = 2214144. Its totient is φ = 211200.

The previous prime is 740749. The next prime is 740801. The reversal of 740784 is 487047.

740784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

740784 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 15 ways as a sum of consecutive naturals, for example, 12114 + ... + 12174.

2⁷⁴⁰⁷⁸⁴ 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 740784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1107072).

740784 is an abundant number, since it is smaller than the sum of its proper divisors (1473360).

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

740784 is a wasteful number, since it uses less digits than its factorization.

740784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 740784 is about 860.6880968156. The cubic root of 740784 is about 90.4823485410.

The spelling of 740784 in words is "seven hundred forty thousand, seven hundred eighty-four".