289020230 has 48 divisors (see below), whose sum is σ = 558877536. Its totient is φ = 107581440.

The previous prime is 289020187. The next prime is 289020233. The reversal of 289020230 is 32020982.

It is a self number, because there is not a number n which added to its sum of digits gives 289020230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289020233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279815 + ... + 280845.

It is an arithmetic number, because the mean of its divisors is an integer number (11643282).

Almost surely, 2^289020230 is an apocalyptic number.

289020230 is a deficient number, since it is larger than the sum of its proper divisors (269857306).

289020230 is a wasteful number, since it uses less digits than its factorization.

289020230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 289020230 is about 17000.5949895879. The cubic root of 289020230 is about 661.1643282936.

The spelling of 289020230 in words is "two hundred eighty-nine million, twenty thousand, two hundred thirty".