4001994207 has 12 divisors (see below), whose sum is σ = 5784367680. Its totient is φ = 2666284128.

The previous prime is 4001994173. The next prime is 4001994233. The reversal of 4001994207 is 7024991004.

4001994207 is a `hidden beast` number, since 40 + 0 + 199 + 420 + 7 = 666.

It is not a de Polignac number, because 4001994207 - 2²² = 3997799903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001994277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127782 + ... + 155987.

It is an arithmetic number, because the mean of its divisors is an integer number (482030640).

Almost surely, 2^4001994207 is an apocalyptic number.

4001994207 is a deficient number, since it is larger than the sum of its proper divisors (1782373473).

4001994207 is a wasteful number, since it uses less digits than its factorization.

4001994207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285342 (or 285339 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 4001994207 is about 63261.3168294812. The cubic root of 4001994207 is about 1587.6648086651.

The spelling of 4001994207 in words is "four billion, one million, nine hundred ninety-four thousand, two hundred seven".