729263238 has 32 divisors (see below), whose sum is σ = 1599391872. Its totient is φ = 219840000.

The previous prime is 729263221. The next prime is 729263243. The reversal of 729263238 is 832362927.

It is a self number, because there is not a number n which added to its sum of digits gives 729263238.

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 15 ways as a sum of consecutive naturals, for example, 15888 + ... + 41363.

It is an arithmetic number, because the mean of its divisors is an integer number (49980996).

Almost surely, 2^729263238 is an apocalyptic number.

729263238 is an abundant number, since it is smaller than the sum of its proper divisors (870128634).

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

729263238 is a wasteful number, since it uses less digits than its factorization.

729263238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57460.

The product of its digits is 217728, while the sum is 42.

The square root of 729263238 is about 27004.8743377932. The cubic root of 729263238 is about 900.1083153587.

The spelling of 729263238 in words is "seven hundred twenty-nine million, two hundred sixty-three thousand, two hundred thirty-eight".