489031278 has 16 divisors (see below), whose sum is σ = 978659280. Its totient is φ = 162910976.

The previous prime is 489031271. The next prime is 489031289. The reversal of 489031278 is 872130984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489031271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13833 + ... + 34196.

It is an arithmetic number, because the mean of its divisors is an integer number (61166205).

Almost surely, 2^489031278 is an apocalyptic number.

489031278 is an abundant number, since it is smaller than the sum of its proper divisors (489628002).

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

489031278 is a wasteful number, since it uses less digits than its factorization.

489031278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49731.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 489031278 is about 22114.0515962137. The cubic root of 489031278 is about 787.8536397072.

The spelling of 489031278 in words is "four hundred eighty-nine million, thirty-one thousand, two hundred seventy-eight".