234441989 has 2 divisors, whose sum is σ = 234441990. Its totient is φ = 234441988.

The previous prime is 234441983. The next prime is 234442001. The reversal of 234441989 is 989144432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174689089 + 59752900 = 13217^2 + 7730^2 .

It is a cyclic number.

It is not a de Polignac number, because 234441989 - 2⁸ = 234441733 is a prime.

It is a super-2 number, since 2×234441989² = 109926092412552242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234441983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117220994 + 117220995.

It is an arithmetic number, because the mean of its divisors is an integer number (117220995).

Almost surely, 2^234441989 is an apocalyptic number.

It is an amenable number.

234441989 is a deficient number, since it is larger than the sum of its proper divisors (1).

234441989 is an equidigital number, since it uses as much as digits as its factorization.

234441989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 234441989 is about 15311.4985876628. The cubic root of 234441989 is about 616.6117539935.

The spelling of 234441989 in words is "two hundred thirty-four million, four hundred forty-one thousand, nine hundred eighty-nine".