724366734 has 64 divisors (see below), whose sum is σ = 1824582144. Its totient is φ = 186592896.

The previous prime is 724366733. The next prime is 724366759. The reversal of 724366734 is 437663427.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724366733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8052 + ... + 38904.

It is an arithmetic number, because the mean of its divisors is an integer number (28509096).

Almost surely, 2^724366734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724366734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (912291072).

724366734 is an abundant number, since it is smaller than the sum of its proper divisors (1100215410).

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

724366734 is a wasteful number, since it uses less digits than its factorization.

724366734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30921.

The product of its digits is 508032, while the sum is 42.

The square root of 724366734 is about 26914.0620122641. The cubic root of 724366734 is about 898.0892524255.

The spelling of 724366734 in words is "seven hundred twenty-four million, three hundred sixty-six thousand, seven hundred thirty-four".