726168256 has 28 divisors (see below), whose sum is σ = 1571990760. Its totient is φ = 330076160.

The previous prime is 726168227. The next prime is 726168257. The reversal of 726168256 is 652861627.

It is not an unprimeable number, because it can be changed into a prime (726168257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515041 + ... + 516448.

Almost surely, 2^726168256 is an apocalyptic number.

It is an amenable number.

726168256 is an abundant number, since it is smaller than the sum of its proper divisors (845822504).

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

726168256 is a wasteful number, since it uses less digits than its factorization.

726168256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031512 (or 1031502 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 726168256 is about 26947.5092726582. The cubic root of 726168256 is about 898.8331611126.

The spelling of 726168256 in words is "seven hundred twenty-six million, one hundred sixty-eight thousand, two hundred fifty-six".