234643389 has 16 divisors (see below), whose sum is σ = 324532032. Its totient is φ = 150691968.

The previous prime is 234643361. The next prime is 234643399. The reversal of 234643389 is 983346432.

It is not a de Polignac number, because 234643389 - 2⁷ = 234643261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234643389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234643399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3042 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (20283252).

Almost surely, 2^234643389 is an apocalyptic number.

It is an amenable number.

234643389 is a deficient number, since it is larger than the sum of its proper divisors (89888643).

234643389 is a wasteful number, since it uses less digits than its factorization.

234643389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25036.

The product of its digits is 373248, while the sum is 42.

The square root of 234643389 is about 15318.0739324499. The cubic root of 234643389 is about 616.7882725198.

The spelling of 234643389 in words is "two hundred thirty-four million, six hundred forty-three thousand, three hundred eighty-nine".