289423070 has 16 divisors (see below), whose sum is σ = 521346240. Its totient is φ = 115683744.

The previous prime is 289423061. The next prime is 289423081. The reversal of 289423070 is 70324982.

It is a self number, because there is not a number n which added to its sum of digits gives 289423070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4571 + ... + 24489.

It is an arithmetic number, because the mean of its divisors is an integer number (32584140).

Almost surely, 2^289423070 is an apocalyptic number.

289423070 is a deficient number, since it is larger than the sum of its proper divisors (231923170).

289423070 is a wasteful number, since it uses less digits than its factorization.

289423070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21379.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 289423070 is about 17012.4386846801. The cubic root of 289423070 is about 661.4713653817.

The spelling of 289423070 in words is "two hundred eighty-nine million, four hundred twenty-three thousand, seventy".