489794634 has 64 divisors (see below), whose sum is σ = 1251532800. Its totient is φ = 139085424.

The previous prime is 489794629. The next prime is 489794647. The reversal of 489794634 is 436497984.

It is a happy number.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59247 + ... + 67005.

It is an arithmetic number, because the mean of its divisors is an integer number (19555200).

Almost surely, 2^489794634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489794634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625766400).

489794634 is an abundant number, since it is smaller than the sum of its proper divisors (761738166).

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

489794634 is a wasteful number, since it uses less digits than its factorization.

489794634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7944 (or 7938 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 489794634 is about 22131.3043899360. The cubic root of 489794634 is about 788.2633613855.

The spelling of 489794634 in words is "four hundred eighty-nine million, seven hundred ninety-four thousand, six hundred thirty-four".