289457394 has 8 divisors (see below), whose sum is σ = 578914800. Its totient is φ = 96485796.

The previous prime is 289457393. The next prime is 289457407. The reversal of 289457394 is 493754982.

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

289457394 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (289457393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24121444 + ... + 24121455.

It is an arithmetic number, because the mean of its divisors is an integer number (72364350).

Almost surely, 2^289457394 is an apocalyptic number.

289457394 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.

289457394 is a wasteful number, since it uses less digits than its factorization.

289457394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48242904.

The product of its digits is 2177280, while the sum is 51.

The square root of 289457394 is about 17013.4474460645. The cubic root of 289457394 is about 661.4975133153.

The spelling of 289457394 in words is "two hundred eighty-nine million, four hundred fifty-seven thousand, three hundred ninety-four".