727072144 has 10 divisors (see below), whose sum is σ = 1408702310. Its totient is φ = 363536064.

The previous prime is 727072123. The next prime is 727072153. The reversal of 727072144 is 441270727.

It is a happy number.

727072144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 369408400 + 357663744 = 19220^2 + 18912^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22720989 + ... + 22721020.

It is an arithmetic number, because the mean of its divisors is an integer number (140870231).

Almost surely, 2^727072144 is an apocalyptic number.

It is an amenable number.

727072144 is a deficient number, since it is larger than the sum of its proper divisors (681630166).

727072144 is a wasteful number, since it uses less digits than its factorization.

727072144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45442017 (or 45442011 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 727072144 is about 26964.2753286640. The cubic root of 727072144 is about 899.2059432428.

The spelling of 727072144 in words is "seven hundred twenty-seven million, seventy-two thousand, one hundred forty-four".