740824 has 16 divisors (see below), whose sum is σ = 1587600. Its totient is φ = 317472.

The previous prime is 740801. The next prime is 740849. The reversal of 740824 is 428047.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

740824 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6559 + ... + 6670.

It is an arithmetic number, because the mean of its divisors is an integer number (99225).

2⁷⁴⁰⁸²⁴ is an apocalyptic number.

It is an amenable number.

740824 is an abundant number, since it is smaller than the sum of its proper divisors (846776).

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

740824 is a wasteful number, since it uses less digits than its factorization.

740824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13242 (or 13238 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 740824 is about 860.7113337234. The cubic root of 740824 is about 90.4839770988.

The spelling of 740824 in words is "seven hundred forty thousand, eight hundred twenty-four".