726091296 has 96 divisors (see below), whose sum is σ = 2214108288. Its totient is φ = 204042240.

The previous prime is 726091271. The next prime is 726091313. The reversal of 726091296 is 692190627.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 32136 + ... + 49848.

It is an arithmetic number, because the mean of its divisors is an integer number (23063628).

Almost surely, 2^726091296 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 726091296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1107054144).

726091296 is an abundant number, since it is smaller than the sum of its proper divisors (1488016992).

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

726091296 is a wasteful number, since it uses less digits than its factorization.

726091296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17794 (or 17786 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 726091296 is about 26946.0812735359. The cubic root of 726091296 is about 898.8014069274.

The spelling of 726091296 in words is "seven hundred twenty-six million, ninety-one thousand, two hundred ninety-six".