726380634 has 32 divisors (see below), whose sum is σ = 1685085696. Its totient is φ = 204438960.

The previous prime is 726380609. The next prime is 726380647. The reversal of 726380634 is 436083627.

726380634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 726380592 and 726380601.

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, 126252 + ... + 131879.

It is an arithmetic number, because the mean of its divisors is an integer number (52658928).

Almost surely, 2^726380634 is an apocalyptic number.

726380634 is an abundant number, since it is smaller than the sum of its proper divisors (958705062).

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

726380634 is a wasteful number, since it uses less digits than its factorization.

726380634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258210.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 726380634 is about 26951.4495714052. The cubic root of 726380634 is about 898.9207779887.

The spelling of 726380634 in words is "seven hundred twenty-six million, three hundred eighty thousand, six hundred thirty-four".