726831436 has 12 divisors (see below), whose sum is σ = 1302978600. Its totient is φ = 354551840.

The previous prime is 726831421. The next prime is 726831439. The reversal of 726831436 is 634138627.

It is not an unprimeable number, because it can be changed into a prime (726831439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215786 + ... + 2216113.

It is an arithmetic number, because the mean of its divisors is an integer number (108581550).

Almost surely, 2^726831436 is an apocalyptic number.

It is an amenable number.

726831436 is a deficient number, since it is larger than the sum of its proper divisors (576147164).

726831436 is a wasteful number, since it uses less digits than its factorization.

726831436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431944 (or 4431942 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 726831436 is about 26959.8114978573. The cubic root of 726831436 is about 899.1067004757.

The spelling of 726831436 in words is "seven hundred twenty-six million, eight hundred thirty-one thousand, four hundred thirty-six".