749724 has 12 divisors (see below), whose sum is σ = 1749384. Its totient is φ = 249904.

The previous prime is 749711. The next prime is 749729. The reversal of 749724 is 427947.

749724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749729) by changing a digit.

749724 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 3 ways as a sum of consecutive naturals, for example, 31227 + ... + 31250.

It is an arithmetic number, because the mean of its divisors is an integer number (145782).

2⁷⁴⁹⁷²⁴ is an apocalyptic number.

It is an amenable number.

749724 is an abundant number, since it is smaller than the sum of its proper divisors (999660).

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

749724 is a wasteful number, since it uses less digits than its factorization.

749724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62484 (or 62482 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 749724 is about 865.8660404474. The cubic root of 749724 is about 90.8448832679.

The spelling of 749724 in words is "seven hundred forty-nine thousand, seven hundred twenty-four".