726261970 has 16 divisors (see below), whose sum is σ = 1494024768. Its totient is φ = 249004080.

The previous prime is 726261953. The next prime is 726261971. The reversal of 726261970 is 79162627.

It is not an unprimeable number, because it can be changed into a prime (726261971) 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, 5187516 + ... + 5187655.

It is an arithmetic number, because the mean of its divisors is an integer number (93376548).

Almost surely, 2^726261970 is an apocalyptic number.

726261970 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

726261970 is an abundant number, since it is smaller than the sum of its proper divisors (767762798).

726261970 is a wasteful number, since it uses less digits than its factorization.

726261970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10375185.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 726261970 is about 26949.2480414575. The cubic root of 726261970 is about 898.8718250755.

The spelling of 726261970 in words is "seven hundred twenty-six million, two hundred sixty-one thousand, nine hundred seventy".