729204894 has 24 divisors (see below), whose sum is σ = 1723575672. Its totient is φ = 220971120.

The previous prime is 729204887. The next prime is 729204923. The reversal of 729204894 is 498402927.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1841229 + ... + 1841624.

It is an arithmetic number, because the mean of its divisors is an integer number (71815653).

Almost surely, 2^729204894 is an apocalyptic number.

729204894 is an abundant number, since it is smaller than the sum of its proper divisors (994370778).

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

729204894 is a wasteful number, since it uses less digits than its factorization.

729204894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682872 (or 3682869 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 729204894 is about 27003.7940667603. The cubic root of 729204894 is about 900.0843106202.

The spelling of 729204894 in words is "seven hundred twenty-nine million, two hundred four thousand, eight hundred ninety-four".