289894194 has 16 divisors (see below), whose sum is σ = 644209440. Its totient is φ = 96631380.

The previous prime is 289894159. The next prime is 289894219. The reversal of 289894194 is 491498982.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 5368411 = 289894194 / (2 + 8 + 9 + 8 + 9 + 4 + 1 + 9 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 289894194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2684152 + ... + 2684259.

It is an arithmetic number, because the mean of its divisors is an integer number (40263090).

Almost surely, 2^289894194 is an apocalyptic number.

289894194 is an abundant number, since it is smaller than the sum of its proper divisors (354315246).

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

289894194 is a wasteful number, since it uses less digits than its factorization.

289894194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368422 (or 5368416 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 289894194 is about 17026.2795113906. The cubic root of 289894194 is about 661.8300860309.

The spelling of 289894194 in words is "two hundred eighty-nine million, eight hundred ninety-four thousand, one hundred ninety-four".