489809738 has 16 divisors (see below), whose sum is σ = 802077120. Its totient is φ = 222482400.

The previous prime is 489809669. The next prime is 489809741. The reversal of 489809738 is 837908984.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27158 + ... + 41438.

It is an arithmetic number, because the mean of its divisors is an integer number (50129820).

Almost surely, 2^489809738 is an apocalyptic number.

489809738 is a deficient number, since it is larger than the sum of its proper divisors (312267382).

489809738 is a wasteful number, since it uses less digits than its factorization.

489809738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15853.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The square root of 489809738 is about 22131.6456234054. The cubic root of 489809738 is about 788.2714639702.

The spelling of 489809738 in words is "four hundred eighty-nine million, eight hundred nine thousand, seven hundred thirty-eight".