729894446 has 32 divisors (see below), whose sum is σ = 1147517280. Its totient is φ = 347760000.

The previous prime is 729894437. The next prime is 729894479. The reversal of 729894446 is 644498927.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2634860 + ... + 2635136.

It is an arithmetic number, because the mean of its divisors is an integer number (35859915).

Almost surely, 2^729894446 is an apocalyptic number.

729894446 is a deficient number, since it is larger than the sum of its proper divisors (417622834).

729894446 is a wasteful number, since it uses less digits than its factorization.

729894446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 3483648, while the sum is 53.

The square root of 729894446 is about 27016.5587371893. The cubic root of 729894446 is about 900.3679343357.

The spelling of 729894446 in words is "seven hundred twenty-nine million, eight hundred ninety-four thousand, four hundred forty-six".