489994529 has 4 divisors (see below), whose sum is σ = 491816340. Its totient is φ = 488172720.

The previous prime is 489994523. The next prime is 489994537. The reversal of 489994529 is 925499984.

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 80013025 + 409981504 = 8945^2 + 20248^2 .

It is a cyclic number.

It is not a de Polignac number, because 489994529 - 2²⁰ = 488945953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489994523) 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, 910502 + ... + 911039.

It is an arithmetic number, because the mean of its divisors is an integer number (122954085).

Almost surely, 2^489994529 is an apocalyptic number.

It is an amenable number.

489994529 is a deficient number, since it is larger than the sum of its proper divisors (1821811).

489994529 is a wasteful number, since it uses less digits than its factorization.

489994529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821810.

The product of its digits is 8398080, while the sum is 59.

The square root of 489994529 is about 22135.8200435403. The cubic root of 489994529 is about 788.3705821557.

The spelling of 489994529 in words is "four hundred eighty-nine million, nine hundred ninety-four thousand, five hundred twenty-nine".