189238412 has 24 divisors (see below), whose sum is σ = 362288640. Its totient is φ = 85775760.

The previous prime is 189238393. The next prime is 189238433. The reversal of 189238412 is 214832981.

It is a super-2 number, since 2×189238412² = 71622353152563488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10289 + ... + 22007.

It is an arithmetic number, because the mean of its divisors is an integer number (15095360).

Almost surely, 2^189238412 is an apocalyptic number.

It is an amenable number.

189238412 is a deficient number, since it is larger than the sum of its proper divisors (173050228).

189238412 is a wasteful number, since it uses less digits than its factorization.

189238412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12101 (or 12099 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 189238412 is about 13756.3953127264. The cubic root of 189238412 is about 574.1205580682.

It can be divided in two parts, 1892 and 38412, that added together give a palindrome (40304).

The spelling of 189238412 in words is "one hundred eighty-nine million, two hundred thirty-eight thousand, four hundred twelve".