234178989 has 32 divisors (see below), whose sum is σ = 353126400. Its totient is φ = 136805760.

The previous prime is 234178981. The next prime is 234178993. The reversal of 234178989 is 989871432.

It is not a de Polignac number, because 234178989 - 2³ = 234178981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234178981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111057 + ... + 113145.

It is an arithmetic number, because the mean of its divisors is an integer number (11035200).

Almost surely, 2^234178989 is an apocalyptic number.

It is an amenable number.

234178989 is a deficient number, since it is larger than the sum of its proper divisors (118947411).

234178989 is a wasteful number, since it uses less digits than its factorization.

234178989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225.

The product of its digits is 870912, while the sum is 51.

The square root of 234178989 is about 15302.9078609263. The cubic root of 234178989 is about 616.3810934211.

The spelling of 234178989 in words is "two hundred thirty-four million, one hundred seventy-eight thousand, nine hundred eighty-nine".