726990768 has 160 divisors (see below), whose sum is σ = 2510553600. Its totient is φ = 196763904.

The previous prime is 726990751. The next prime is 726990773. The reversal of 726990768 is 867099627.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51130 + ... + 63782.

It is an arithmetic number, because the mean of its divisors is an integer number (15690960).

Almost surely, 2^726990768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726990768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1255276800).

726990768 is an abundant number, since it is smaller than the sum of its proper divisors (1783562832).

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

726990768 is a wasteful number, since it uses less digits than its factorization.

726990768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12696 (or 12684 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 726990768 is about 26962.7663269183. The cubic root of 726990768 is about 899.1723947550.

The spelling of 726990768 in words is "seven hundred twenty-six million, nine hundred ninety thousand, seven hundred sixty-eight".