726605340 has 48 divisors (see below), whose sum is σ = 2036281632. Its totient is φ = 193591296.

The previous prime is 726605339. The next prime is 726605389. The reversal of 726605340 is 43506627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73152 + ... + 82488.

It is an arithmetic number, because the mean of its divisors is an integer number (42422534).

Almost surely, 2^726605340 is an apocalyptic number.

It is an amenable number.

726605340 is an abundant number, since it is smaller than the sum of its proper divisors (1309676292).

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

726605340 is a wasteful number, since it uses less digits than its factorization.

726605340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10646 (or 10644 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 726605340 is about 26955.6179673181. The cubic root of 726605340 is about 899.0134622085.

The spelling of 726605340 in words is "seven hundred twenty-six million, six hundred five thousand, three hundred forty".