726336136 has 16 divisors (see below), whose sum is σ = 1421092800. Its totient is φ = 347378064.

The previous prime is 726336133. The next prime is 726336151. The reversal of 726336136 is 631633627.

It is a junction number, because it is equal to n+sod(n) for n = 726336095 and 726336104.

It is not an unprimeable number, because it can be changed into a prime (726336131) by changing a digit.

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, 1973556 + ... + 1973923.

It is an arithmetic number, because the mean of its divisors is an integer number (88818300).

Almost surely, 2^726336136 is an apocalyptic number.

It is an amenable number.

726336136 is a deficient number, since it is larger than the sum of its proper divisors (694756664).

726336136 is a wasteful number, since it uses less digits than its factorization.

726336136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3947508 (or 3947504 counting only the distinct ones).

The product of its digits is 81648, while the sum is 37.

The square root of 726336136 is about 26950.6240373020. The cubic root of 726336136 is about 898.9024216836.

The spelling of 726336136 in words is "seven hundred twenty-six million, three hundred thirty-six thousand, one hundred thirty-six".