729140814 has 12 divisors (see below), whose sum is σ = 1579805136. Its totient is φ = 243046932.

The previous prime is 729140803. The next prime is 729140831. The reversal of 729140814 is 418041927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20253894 + ... + 20253929.

It is an arithmetic number, because the mean of its divisors is an integer number (131650428).

Almost surely, 2^729140814 is an apocalyptic number.

729140814 is an abundant number, since it is smaller than the sum of its proper divisors (850664322).

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

729140814 is a wasteful number, since it uses less digits than its factorization.

729140814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40507831 (or 40507828 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 729140814 is about 27002.6075407543. The cubic root of 729140814 is about 900.0579444175.

The spelling of 729140814 in words is "seven hundred twenty-nine million, one hundred forty thousand, eight hundred fourteen".