726242432 has 32 divisors (see below), whose sum is σ = 1450999980. Its totient is φ = 362070016.

The previous prime is 726242417. The next prime is 726242443. The reversal of 726242432 is 234242627.

It can be written as a sum of positive squares in 2 ways, for example, as 691479616 + 34762816 = 26296^2 + 5896^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

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 3 ways as a sum of consecutive naturals, for example, 37148 + ... + 53220.

Almost surely, 2^726242432 is an apocalyptic number.

It is an amenable number.

726242432 is a deficient number, since it is larger than the sum of its proper divisors (724757548).

726242432 is a wasteful number, since it uses less digits than its factorization.

726242432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16440 (or 16428 counting only the distinct ones).

The product of its digits is 32256, while the sum is 32.

The square root of 726242432 is about 26948.8855428198. The cubic root of 726242432 is about 898.8637644785.

It can be divided in two parts, 7262 and 42432, that added together give a palindrome (49694).

The spelling of 726242432 in words is "seven hundred twenty-six million, two hundred forty-two thousand, four hundred thirty-two".