189485610 has 32 divisors (see below), whose sum is σ = 455906880. Its totient is φ = 50402688.

The previous prime is 189485599. The next prime is 189485617. The reversal of 189485610 is 16584981.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189485617) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4549 + ... + 19991.

It is an arithmetic number, because the mean of its divisors is an integer number (14247090).

Almost surely, 2^189485610 is an apocalyptic number.

189485610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189485610 is an abundant number, since it is smaller than the sum of its proper divisors (266421270).

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

189485610 is a wasteful number, since it uses less digits than its factorization.

189485610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15862.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 189485610 is about 13765.3772196769. The cubic root of 189485610 is about 574.3704363404.

The spelling of 189485610 in words is "one hundred eighty-nine million, four hundred eighty-five thousand, six hundred ten".