740724 has 24 divisors (see below), whose sum is σ = 1830528. Its totient is φ = 232320.

The previous prime is 740717. The next prime is 740737. The reversal of 740724 is 427047.

It is a junction number, because it is equal to n+sod(n) for n = 740694 and 740703.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 1612 + ... + 2019.

It is an arithmetic number, because the mean of its divisors is an integer number (76272).

2⁷⁴⁰⁷²⁴ is an apocalyptic number.

It is an amenable number.

740724 is an abundant number, since it is smaller than the sum of its proper divisors (1089804).

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

740724 is a wasteful number, since it uses less digits than its factorization.

740724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655 (or 3653 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 740724 is about 860.6532402774. The cubic root of 740724 is about 90.4799055943.

The spelling of 740724 in words is "seven hundred forty thousand, seven hundred twenty-four", and thus it is an iban number.