289188494 has 12 divisors (see below), whose sum is σ = 504604584. Its totient is φ = 123937884.

The previous prime is 289188469. The next prime is 289188521. The reversal of 289188494 is 494881982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1475354 + ... + 1475549.

It is an arithmetic number, because the mean of its divisors is an integer number (42050382).

Almost surely, 2^289188494 is an apocalyptic number.

289188494 is a deficient number, since it is larger than the sum of its proper divisors (215416090).

289188494 is a wasteful number, since it uses less digits than its factorization.

289188494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950919 (or 2950912 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 53.

The square root of 289188494 is about 17005.5430374922. The cubic root of 289188494 is about 661.2926106310.

The spelling of 289188494 in words is "two hundred eighty-nine million, one hundred eighty-eight thousand, four hundred ninety-four".