489699826 has 72 divisors (see below), whose sum is σ = 956024748. Its totient is φ = 187387200.

The previous prime is 489699817. The next prime is 489699827. The reversal of 489699826 is 628996984.

It can be written as a sum of positive squares in 2 ways, for example, as 488365801 + 1334025 = 22099^2 + 1155^2 .

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (489699827) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 723000 + ... + 723676.

Almost surely, 2^489699826 is an apocalyptic number.

489699826 is a deficient number, since it is larger than the sum of its proper divisors (466324922).

489699826 is a wasteful number, since it uses less digits than its factorization.

489699826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 758 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 61.

The square root of 489699826 is about 22129.1623429356. The cubic root of 489699826 is about 788.2124975540.

The spelling of 489699826 in words is "four hundred eighty-nine million, six hundred ninety-nine thousand, eight hundred twenty-six".