489278574 has 12 divisors (see below), whose sum is σ = 1060103616. Its totient is φ = 163092852.

The previous prime is 489278561. The next prime is 489278591. The reversal of 489278574 is 475872984.

It is a happy number.

489278574 is a `hidden beast` number, since 48 + 9 + 27 + 8 + 574 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 489278574.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13591054 + ... + 13591089.

It is an arithmetic number, because the mean of its divisors is an integer number (88341968).

Almost surely, 2^489278574 is an apocalyptic number.

489278574 is an abundant number, since it is smaller than the sum of its proper divisors (570825042).

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

489278574 is a wasteful number, since it uses less digits than its factorization.

489278574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27182151 (or 27182148 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 489278574 is about 22119.6422665467. The cubic root of 489278574 is about 787.9864193679.

The spelling of 489278574 in words is "four hundred eighty-nine million, two hundred seventy-eight thousand, five hundred seventy-four".