1649683298 has 32 divisors (see below), whose sum is σ = 2710795248. Its totient is φ = 749824000.

The previous prime is 1649683291. The next prime is 1649683331. The reversal of 1649683298 is 8923869461.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 501625609 + 1148057689 = 22397^2 + 33883^2 .

It is not an unprimeable number, because it can be changed into a prime (1649683291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134936 + ... + 146652.

Almost surely, 2^1649683298 is an apocalyptic number.

1649683298 is a deficient number, since it is larger than the sum of its proper divisors (1061111950).

1649683298 is a wasteful number, since it uses less digits than its factorization.

1649683298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11878.

The product of its digits is 4478976, while the sum is 56.

The square root of 1649683298 is about 40616.2935039622. The cubic root of 1649683298 is about 1181.5901424164.

The spelling of 1649683298 in words is "one billion, six hundred forty-nine million, six hundred eighty-three thousand, two hundred ninety-eight".