726907340 has 24 divisors (see below), whose sum is σ = 1527165360. Its totient is φ = 290637248.

The previous prime is 726907319. The next prime is 726907351. The reversal of 726907340 is 43709627.

It is a junction number, because it is equal to n+sod(n) for n = 726907294 and 726907303.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 49934 + ... + 62826.

It is an arithmetic number, because the mean of its divisors is an integer number (63631890).

Almost surely, 2^726907340 is an apocalyptic number.

It is an amenable number.

726907340 is an abundant number, since it is smaller than the sum of its proper divisors (800258020).

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

726907340 is a wasteful number, since it uses less digits than its factorization.

726907340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15721 (or 15719 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 726907340 is about 26961.2191860828. The cubic root of 726907340 is about 899.1379977000.

The spelling of 726907340 in words is "seven hundred twenty-six million, nine hundred seven thousand, three hundred forty".