189272434 has 16 divisors (see below), whose sum is σ = 311518872. Its totient is φ = 85707648.

The previous prime is 189272417. The next prime is 189272459. The reversal of 189272434 is 434272981.

It can be written as a sum of positive squares in 4 ways, for example, as 124389409 + 64883025 = 11153^2 + 8055^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67299 + ... + 70054.

Almost surely, 2^189272434 is an apocalyptic number.

189272434 is a deficient number, since it is larger than the sum of its proper divisors (122246438).

189272434 is a wasteful number, since it uses less digits than its factorization.

189272434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137421.

The product of its digits is 96768, while the sum is 40.

The square root of 189272434 is about 13757.6318456339. The cubic root of 189272434 is about 574.1549618643.

The spelling of 189272434 in words is "one hundred eighty-nine million, two hundred seventy-two thousand, four hundred thirty-four".