289742343 has 16 divisors (see below), whose sum is σ = 443625600. Its totient is φ = 166358880.

The previous prime is 289742311. The next prime is 289742347. The reversal of 289742343 is 343247982.

It is not a de Polignac number, because 289742343 - 2⁵ = 289742311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289742295 and 289742304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289742347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230428 + ... + 231681.

It is an arithmetic number, because the mean of its divisors is an integer number (27726600).

Almost surely, 2^289742343 is an apocalyptic number.

289742343 is a deficient number, since it is larger than the sum of its proper divisors (153883257).

289742343 is a wasteful number, since it uses less digits than its factorization.

289742343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462142.

The product of its digits is 290304, while the sum is 42.

The square root of 289742343 is about 17021.8196148355. The cubic root of 289742343 is about 661.7145069503.

The spelling of 289742343 in words is "two hundred eighty-nine million, seven hundred forty-two thousand, three hundred forty-three".