234343989 has 32 divisors (see below), whose sum is σ = 379745280. Its totient is φ = 141649200.

The previous prime is 234343981. The next prime is 234344029. The reversal of 234343989 is 989343432.

It is not a de Polignac number, because 234343989 - 2³ = 234343981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234343981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145024 + ... + 146630.

It is an arithmetic number, because the mean of its divisors is an integer number (11867040).

Almost surely, 2^234343989 is an apocalyptic number.

It is an amenable number.

234343989 is a deficient number, since it is larger than the sum of its proper divisors (145401291).

234343989 is a wasteful number, since it uses less digits than its factorization.

234343989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118 (or 2112 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 234343989 is about 15308.2980438715. The cubic root of 234343989 is about 616.5258246000.

The spelling of 234343989 in words is "two hundred thirty-four million, three hundred forty-three thousand, nine hundred eighty-nine".