4001994206 has 16 divisors (see below), whose sum is σ = 7221644160. Its totient is φ = 1624869720.

The previous prime is 4001994173. The next prime is 4001994233. The reversal of 4001994206 is 6024991004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7522280 + ... + 7522811.

It is an arithmetic number, because the mean of its divisors is an integer number (451352760).

Almost surely, 2^4001994206 is an apocalyptic number.

4001994206 is a deficient number, since it is larger than the sum of its proper divisors (3219649954).

4001994206 is a wasteful number, since it uses less digits than its factorization.

4001994206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15045119.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 4001994206 is about 63261.3168215775. The cubic root of 4001994206 is about 1587.6648085328.

The spelling of 4001994206 in words is "four billion, one million, nine hundred ninety-four thousand, two hundred six".