289729438 has 8 divisors (see below), whose sum is σ = 437472720. Its totient is φ = 143905200.

The previous prime is 289729387. The next prime is 289729439. The reversal of 289729438 is 834927982.

289729438 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289729439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479383 + ... + 479986.

It is an arithmetic number, because the mean of its divisors is an integer number (54684090).

Almost surely, 2^289729438 is an apocalyptic number.

289729438 is a deficient number, since it is larger than the sum of its proper divisors (147743282).

289729438 is a wasteful number, since it uses less digits than its factorization.

289729438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959522.

The product of its digits is 1741824, while the sum is 52.

The square root of 289729438 is about 17021.4405383328. The cubic root of 289729438 is about 661.7046826441.

The spelling of 289729438 in words is "two hundred eighty-nine million, seven hundred twenty-nine thousand, four hundred thirty-eight".