726760340 has 24 divisors (see below), whose sum is σ = 1537342632. Its totient is φ = 288581120.

The previous prime is 726760337. The next prime is 726760343. The reversal of 726760340 is 43067627.

It is an interprime number because it is at equal distance from previous prime (726760337) and next prime (726760343).

It can be written as a sum of positive squares in 4 ways, for example, as 338118544 + 388641796 = 18388^2 + 19714^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 726760340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726760343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129881 + ... + 135360.

It is an arithmetic number, because the mean of its divisors is an integer number (64055943).

Almost surely, 2^726760340 is an apocalyptic number.

It is an amenable number.

726760340 is an abundant number, since it is smaller than the sum of its proper divisors (810582292).

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

726760340 is a wasteful number, since it uses less digits than its factorization.

726760340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265387 (or 265385 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 726760340 is about 26958.4929103984. The cubic root of 726760340 is about 899.0773837404.

The spelling of 726760340 in words is "seven hundred twenty-six million, seven hundred sixty thousand, three hundred forty".