489606890 has 8 divisors (see below), whose sum is σ = 881292420. Its totient is φ = 195842752.

The previous prime is 489606883. The next prime is 489606959. The reversal of 489606890 is 98606984.

It can be written as a sum of positive squares in 2 ways, for example, as 487570561 + 2036329 = 22081^2 + 1427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24480335 + ... + 24480354.

Almost surely, 2^489606890 is an apocalyptic number.

489606890 is a deficient number, since it is larger than the sum of its proper divisors (391685530).

489606890 is a wasteful number, since it uses less digits than its factorization.

489606890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48960696.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 489606890 is about 22127.0623897525. The cubic root of 489606890 is about 788.1626316652.

The spelling of 489606890 in words is "four hundred eighty-nine million, six hundred six thousand, eight hundred ninety".