489640170 has 32 divisors (see below), whose sum is σ = 1181941632. Its totient is φ = 129814592.

The previous prime is 489640153. The next prime is 489640199. The reversal of 489640170 is 71046984.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41982 + ... + 52361.

It is an arithmetic number, because the mean of its divisors is an integer number (36935676).

Almost surely, 2^489640170 is an apocalyptic number.

489640170 is an abundant number, since it is smaller than the sum of its proper divisors (692301462).

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

489640170 is a wasteful number, since it uses less digits than its factorization.

489640170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94526.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 489640170 is about 22127.8143972693. The cubic root of 489640170 is about 788.1804891604.

The spelling of 489640170 in words is "four hundred eighty-nine million, six hundred forty thousand, one hundred seventy".