3996650138 has 64 divisors (see below), whose sum is σ = 6943104000. Its totient is φ = 1711342080.

The previous prime is 3996650101. The next prime is 3996650143. The reversal of 3996650138 is 8310566993.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3809438 + ... + 3810486.

It is an arithmetic number, because the mean of its divisors is an integer number (108486000).

Almost surely, 2^3996650138 is an apocalyptic number.

3996650138 is a deficient number, since it is larger than the sum of its proper divisors (2946453862).

3996650138 is a wasteful number, since it uses less digits than its factorization.

3996650138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287.

The product of its (nonzero) digits is 1049760, while the sum is 50.

The square root of 3996650138 is about 63219.0646719801. The cubic root of 3996650138 is about 1586.9577970030.

The spelling of 3996650138 in words is "three billion, nine hundred ninety-six million, six hundred fifty thousand, one hundred thirty-eight".