749824 has 36 divisors (see below), whose sum is σ = 1563660. Its totient is φ = 358400.

The previous prime is 749809. The next prime is 749843. The reversal of 749824 is 428947.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 589824 + 160000 = 768^2 + 400^2 .

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 749824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7374 + ... + 7474.

It is an arithmetic number, because the mean of its divisors is an integer number (43435).

2⁷⁴⁹⁸²⁴ 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 749824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (781830).

749824 is an abundant number, since it is smaller than the sum of its proper divisors (813836).

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

749824 is a wasteful number, since it uses less digits than its factorization.

749824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 132 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 749824 is about 865.9237841750. The cubic root of 749824 is about 90.8489221251.

The spelling of 749824 in words is "seven hundred forty-nine thousand, eight hundred twenty-four".