289158494 has 4 divisors (see below), whose sum is σ = 433737744. Its totient is φ = 144579246.

The previous prime is 289158487. The next prime is 289158497. The reversal of 289158494 is 494851982.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×289158494² = 167225269304696072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289158497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72289622 + ... + 72289625.

It is an arithmetic number, because the mean of its divisors is an integer number (108434436).

Almost surely, 2^289158494 is an apocalyptic number.

289158494 is a deficient number, since it is larger than the sum of its proper divisors (144579250).

289158494 is a wasteful number, since it uses less digits than its factorization.

289158494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144579249.

The product of its digits is 829440, while the sum is 50.

The square root of 289158494 is about 17004.6609492809. The cubic root of 289158494 is about 661.2697426576.

The spelling of 289158494 in words is "two hundred eighty-nine million, one hundred fifty-eight thousand, four hundred ninety-four".