189398441 has 8 divisors (see below), whose sum is σ = 199644000. Its totient is φ = 179180640.

The previous prime is 189398413. The next prime is 189398467. The reversal of 189398441 is 144893981.

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

It is not a de Polignac number, because 189398441 - 2²⁶ = 122289577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189398401) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 7910 + ... + 21008.

It is an arithmetic number, because the mean of its divisors is an integer number (24955500).

Almost surely, 2^189398441 is an apocalyptic number.

It is an amenable number.

189398441 is a deficient number, since it is larger than the sum of its proper divisors (10245559).

189398441 is a wasteful number, since it uses less digits than its factorization.

189398441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13879.

The product of its digits is 248832, while the sum is 47.

The square root of 189398441 is about 13762.2106145779. The cubic root of 189398441 is about 574.2823470196.

The spelling of 189398441 in words is "one hundred eighty-nine million, three hundred ninety-eight thousand, four hundred forty-one".