230039989 has 4 divisors (see below), whose sum is σ = 236257324. Its totient is φ = 223822656.

The previous prime is 230039969. The next prime is 230040001. The reversal of 230039989 is 989930032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 120670225 + 109369764 = 10985^2 + 10458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230039989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230039969) 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, 3108612 + ... + 3108685.

It is an arithmetic number, because the mean of its divisors is an integer number (59064331).

Almost surely, 2^230039989 is an apocalyptic number.

It is an amenable number.

230039989 is a deficient number, since it is larger than the sum of its proper divisors (6217335).

230039989 is an equidigital number, since it uses as much as digits as its factorization.

230039989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217334.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 230039989 is about 15167.0692290897. The cubic root of 230039989 is about 612.7280741073.

Adding to 230039989 its sum of digits (43), we get a palindrome (230040032).

The spelling of 230039989 in words is "two hundred thirty million, thirty-nine thousand, nine hundred eighty-nine".