1649652008 has 16 divisors (see below), whose sum is σ = 3199756500. Its totient is φ = 796383616.

The previous prime is 1649651987. The next prime is 1649652041. The reversal of 1649652008 is 8002569461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1471643044 + 178008964 = 38362^2 + 13342^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3555053 + ... + 3555516.

Almost surely, 2^1649652008 is an apocalyptic number.

It is an amenable number.

1649652008 is a deficient number, since it is larger than the sum of its proper divisors (1550104492).

1649652008 is a wasteful number, since it uses less digits than its factorization.

1649652008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7110604 (or 7110600 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1649652008 is about 40615.9083118918. The cubic root of 1649652008 is about 1181.5826718534.

The spelling of 1649652008 in words is "one billion, six hundred forty-nine million, six hundred fifty-two thousand, eight".