289218070 has 8 divisors (see below), whose sum is σ = 520592544. Its totient is φ = 115687224.

The previous prime is 289218067. The next prime is 289218079. The reversal of 289218070 is 70812982.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289218079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14460894 + ... + 14460913.

It is an arithmetic number, because the mean of its divisors is an integer number (65074068).

Almost surely, 2^289218070 is an apocalyptic number.

289218070 is a deficient number, since it is larger than the sum of its proper divisors (231374474).

289218070 is a wasteful number, since it uses less digits than its factorization.

289218070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28921814.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 289218070 is about 17006.4126140700. The cubic root of 289218070 is about 661.3151538556.

The spelling of 289218070 in words is "two hundred eighty-nine million, two hundred eighteen thousand, seventy".