1649982299 has 4 divisors (see below), whose sum is σ = 1885694064. Its totient is φ = 1414270536.

The previous prime is 1649982293. The next prime is 1649982331. The reversal of 1649982299 is 9922899461.

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

It is not a de Polignac number, because 1649982299 - 2²⁰ = 1648933723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1649982293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117855872 + ... + 117855885.

It is an arithmetic number, because the mean of its divisors is an integer number (471423516).

Almost surely, 2^1649982299 is an apocalyptic number.

1649982299 is a deficient number, since it is larger than the sum of its proper divisors (235711765).

1649982299 is an equidigital number, since it uses as much as digits as its factorization.

1649982299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235711764.

The product of its digits is 5038848, while the sum is 59.

The square root of 1649982299 is about 40619.9741383473. The cubic root of 1649982299 is about 1181.6615248634.

The spelling of 1649982299 in words is "one billion, six hundred forty-nine million, nine hundred eighty-two thousand, two hundred ninety-nine".