729776268 has 36 divisors (see below), whose sum is σ = 1986614448. Its totient is φ = 224546400.

The previous prime is 729776231. The next prime is 729776309. The reversal of 729776268 is 862677927.

729776268 is a `hidden beast` number, since 7 + 2 + 9 + 7 + 7 + 626 + 8 = 666.

729776268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 779208 + ... + 780143.

Almost surely, 2^729776268 is an apocalyptic number.

729776268 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

729776268 is an abundant number, since it is smaller than the sum of its proper divisors (1256838180).

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

729776268 is a wasteful number, since it uses less digits than its factorization.

729776268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559374 (or 1559369 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 729776268 is about 27014.3715085138. The cubic root of 729776268 is about 900.3193385306.

The spelling of 729776268 in words is "seven hundred twenty-nine million, seven hundred seventy-six thousand, two hundred sixty-eight".