234189418 has 4 divisors (see below), whose sum is σ = 351284130. Its totient is φ = 117094708.

The previous prime is 234189401. The next prime is 234189437. The reversal of 234189418 is 814981432.

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

It can be written as a sum of positive squares in only one way, i.e., 219543489 + 14645929 = 14817^2 + 3827^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 58547353 + ... + 58547356.

Almost surely, 2^234189418 is an apocalyptic number.

234189418 is a deficient number, since it is larger than the sum of its proper divisors (117094712).

234189418 is a wasteful number, since it uses less digits than its factorization.

234189418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117094711.

The product of its digits is 55296, while the sum is 40.

The square root of 234189418 is about 15303.2486093640. The cubic root of 234189418 is about 616.3902433211.

The spelling of 234189418 in words is "two hundred thirty-four million, one hundred eighty-nine thousand, four hundred eighteen".