726140160 has 144 divisors (see below), whose sum is σ = 2576911680. Its totient is φ = 193628160.

The previous prime is 726140137. The next prime is 726140179. The reversal of 726140160 is 61041627.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 24055 + ... + 45065.

It is an arithmetic number, because the mean of its divisors is an integer number (17895220).

Almost surely, 2^726140160 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 726140160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1288455840).

726140160 is an abundant number, since it is smaller than the sum of its proper divisors (1850771520).

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

726140160 is a wasteful number, since it uses less digits than its factorization.

726140160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21041 (or 21021 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 726140160 is about 26946.9879578405. The cubic root of 726140160 is about 898.8215687844.

Adding to 726140160 its reverse (61041627), we get a palindrome (787181787).

The spelling of 726140160 in words is "seven hundred twenty-six million, one hundred forty thousand, one hundred sixty".