189845242 has 8 divisors (see below), whose sum is σ = 284901876. Its totient is φ = 94877952.

The previous prime is 189845213. The next prime is 189845251. The reversal of 189845242 is 242548981.

It can be written as a sum of positive squares in 2 ways, for example, as 182817441 + 7027801 = 13521^2 + 2651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16743 + ... + 25690.

Almost surely, 2^189845242 is an apocalyptic number.

189845242 is a deficient number, since it is larger than the sum of its proper divisors (95056634).

189845242 is a wasteful number, since it uses less digits than its factorization.

189845242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44672.

The product of its digits is 184320, while the sum is 43.

The square root of 189845242 is about 13778.4339458445. The cubic root of 189845242 is about 574.7335799158.

The spelling of 189845242 in words is "one hundred eighty-nine million, eight hundred forty-five thousand, two hundred forty-two".