289444438 has 8 divisors (see below), whose sum is σ = 444263688. Its totient is φ = 141356544.

The previous prime is 289444429. The next prime is 289444453. The reversal of 289444438 is 834444982.

289444438 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682731 + ... + 1682902.

It is an arithmetic number, because the mean of its divisors is an integer number (55532961).

Almost surely, 2^289444438 is an apocalyptic number.

289444438 is a deficient number, since it is larger than the sum of its proper divisors (154819250).

289444438 is a wasteful number, since it uses less digits than its factorization.

289444438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365678.

The product of its digits is 884736, while the sum is 46.

The square root of 289444438 is about 17013.0666841696. The cubic root of 289444438 is about 661.4876437112.

The spelling of 289444438 in words is "two hundred eighty-nine million, four hundred forty-four thousand, four hundred thirty-eight".