726244144 has 20 divisors (see below), whose sum is σ = 1481156440. Its totient is φ = 344010240.

The previous prime is 726244093. The next prime is 726244151. The reversal of 726244144 is 441442627.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194177 + ... + 1194784.

It is an arithmetic number, because the mean of its divisors is an integer number (74057822).

Almost surely, 2^726244144 is an apocalyptic number.

It is an amenable number.

726244144 is an abundant number, since it is smaller than the sum of its proper divisors (754912296).

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

726244144 is a wasteful number, since it uses less digits than its factorization.

726244144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388988 (or 2388982 counting only the distinct ones).

The product of its digits is 43008, while the sum is 34.

The square root of 726244144 is about 26948.9173066378. The cubic root of 726244144 is about 898.8644707870.

The spelling of 726244144 in words is "seven hundred twenty-six million, two hundred forty-four thousand, one hundred forty-four".