489943674 has 32 divisors (see below), whose sum is σ = 1187743680. Its totient is φ = 148467600.

The previous prime is 489943673. The next prime is 489943679. The reversal of 489943674 is 476349984.

It is a happy number.

489943674 is a `hidden beast` number, since 489 + 94 + 3 + 6 + 74 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 489943674.

It is not an unprimeable number, because it can be changed into a prime (489943673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411817 + ... + 413004.

It is an arithmetic number, because the mean of its divisors is an integer number (37116990).

Almost surely, 2^489943674 is an apocalyptic number.

489943674 is an abundant number, since it is smaller than the sum of its proper divisors (697800006).

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

489943674 is a wasteful number, since it uses less digits than its factorization.

489943674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824843 (or 824837 counting only the distinct ones).

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

The square root of 489943674 is about 22134.6713099608. The cubic root of 489943674 is about 788.3433070396.

The spelling of 489943674 in words is "four hundred eighty-nine million, nine hundred forty-three thousand, six hundred seventy-four".