189420098 has 16 divisors (see below), whose sum is σ = 326143680. Its totient is φ = 80824176.

The previous prime is 189420097. The next prime is 189420151. The reversal of 189420098 is 890024981.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189420097) by changing a digit.

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, 26336 + ... + 32747.

It is an arithmetic number, because the mean of its divisors is an integer number (20383980).

Almost surely, 2^189420098 is an apocalyptic number.

189420098 is a deficient number, since it is larger than the sum of its proper divisors (136723582).

189420098 is a wasteful number, since it uses less digits than its factorization.

189420098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59321.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 189420098 is about 13762.9974206203. The cubic root of 189420098 is about 574.3042351948.

The spelling of 189420098 in words is "one hundred eighty-nine million, four hundred twenty thousand, ninety-eight".