289042690 has 32 divisors (see below), whose sum is σ = 531725184. Its totient is φ = 113097600.

The previous prime is 289042673. The next prime is 289042693. The reversal of 289042690 is 96240982.

It is a super-2 number, since 2×289042690² = 167091353284872200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289042693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99742 + ... + 102598.

It is an arithmetic number, because the mean of its divisors is an integer number (16616412).

Almost surely, 2^289042690 is an apocalyptic number.

289042690 is a deficient number, since it is larger than the sum of its proper divisors (242682494).

289042690 is a wasteful number, since it uses less digits than its factorization.

289042690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 289042690 is about 17001.2555418710. The cubic root of 289042690 is about 661.1814543914.

The spelling of 289042690 in words is "two hundred eighty-nine million, forty-two thousand, six hundred ninety".