729269568 has 70 divisors (see below), whose sum is σ = 2161798826. Its totient is φ = 243088128.

The previous prime is 729269539. The next prime is 729269573. The reversal of 729269568 is 865962927.

729269568 is a `hidden beast` number, since 72 + 9 + 2 + 6 + 9 + 568 = 666.

729269568 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., 534164544 + 195105024 = 23112^2 + 13968^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 65155 + ... + 75522.

Almost surely, 2^729269568 is an apocalyptic number.

It is an amenable number.

729269568 is an abundant number, since it is smaller than the sum of its proper divisors (1432529258).

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

729269568 is a wasteful number, since it uses less digits than its factorization.

729269568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140701 (or 140682 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 729269568 is about 27004.9915386026. The cubic root of 729269568 is about 900.1109196626.

The spelling of 729269568 in words is "seven hundred twenty-nine million, two hundred sixty-nine thousand, five hundred sixty-eight".