289306434 has 8 divisors (see below), whose sum is σ = 578612880. Its totient is φ = 96435476.

The previous prime is 289306427. The next prime is 289306439. The reversal of 289306434 is 434603982.

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

289306434 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 289306392 and 289306401.

It is not an unprimeable number, because it can be changed into a prime (289306439) 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, 24108864 + ... + 24108875.

It is an arithmetic number, because the mean of its divisors is an integer number (72326610).

Almost surely, 2^289306434 is an apocalyptic number.

289306434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

289306434 is a wasteful number, since it uses less digits than its factorization.

289306434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48217744.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 289306434 is about 17009.0103768561. The cubic root of 289306434 is about 661.3824969300.

The spelling of 289306434 in words is "two hundred eighty-nine million, three hundred six thousand, four hundred thirty-four".