489798049 has 4 divisors (see below), whose sum is σ = 527474836. Its totient is φ = 452121264.

The previous prime is 489797981. The next prime is 489798091. The reversal of 489798049 is 940897984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42771600 + 447026449 = 6540^2 + 21143^2 .

It is a cyclic number.

It is not a de Polignac number, because 489798049 - 2¹⁵ = 489765281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489797984 and 489798002.

It is not an unprimeable number, because it can be changed into a prime (489798349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18838374 + ... + 18838399.

It is an arithmetic number, because the mean of its divisors is an integer number (131868709).

Almost surely, 2^489798049 is an apocalyptic number.

It is an amenable number.

489798049 is a deficient number, since it is larger than the sum of its proper divisors (37676787).

489798049 is a wasteful number, since it uses less digits than its factorization.

489798049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37676786.

The product of its (nonzero) digits is 5225472, while the sum is 58.

The square root of 489798049 is about 22131.3815429584. The cubic root of 489798049 is about 788.2651933868.

The spelling of 489798049 in words is "four hundred eighty-nine million, seven hundred ninety-eight thousand, forty-nine".