189809234 has 16 divisors (see below), whose sum is σ = 295407000. Its totient is φ = 91359744.

The previous prime is 189809231. The next prime is 189809237. The reversal of 189809234 is 432908981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (189809231) and next prime (189809237).

It can be written as a sum of positive squares in 4 ways, for example, as 148913209 + 40896025 = 12203^2 + 6395^2 .

It is not an unprimeable number, because it can be changed into a prime (189809231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15554 + ... + 24930.

Almost surely, 2^189809234 is an apocalyptic number.

189809234 is a deficient number, since it is larger than the sum of its proper divisors (105597766).

189809234 is a wasteful number, since it uses less digits than its factorization.

189809234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9757.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 189809234 is about 13777.1272041743. The cubic root of 189809234 is about 574.6972409921.

The spelling of 189809234 in words is "one hundred eighty-nine million, eight hundred nine thousand, two hundred thirty-four".