289640034 has 24 divisors (see below), whose sum is σ = 627893760. Its totient is φ = 96494328.

The previous prime is 289640003. The next prime is 289640041. The reversal of 289640034 is 430046982.

It is a happy number.

289640034 is a `hidden beast` number, since 2 + 8 + 9 + 640 + 0 + 3 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44607 + ... + 50685.

It is an arithmetic number, because the mean of its divisors is an integer number (26162240).

Almost surely, 2^289640034 is an apocalyptic number.

289640034 is an abundant number, since it is smaller than the sum of its proper divisors (338253726).

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

289640034 is a wasteful number, since it uses less digits than its factorization.

289640034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8734 (or 8731 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 289640034 is about 17018.8141184984. The cubic root of 289640034 is about 661.6366132389.

The spelling of 289640034 in words is "two hundred eighty-nine million, six hundred forty thousand, thirty-four".