189398562 has 8 divisors (see below), whose sum is σ = 378797136. Its totient is φ = 63132852.

The previous prime is 189398551. The next prime is 189398591. The reversal of 189398562 is 265893981.

It is a happy number.

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

189398562 is an admirable number.

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, 15783208 + ... + 15783219.

It is an arithmetic number, because the mean of its divisors is an integer number (47349642).

Almost surely, 2^189398562 is an apocalyptic number.

189398562 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189398562 is a wasteful number, since it uses less digits than its factorization.

189398562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31566432.

The product of its digits is 933120, while the sum is 51.

The square root of 189398562 is about 13762.2150106732. The cubic root of 189398562 is about 574.2824693159.

The spelling of 189398562 in words is "one hundred eighty-nine million, three hundred ninety-eight thousand, five hundred sixty-two".