3946403905 has 48 divisors (see below), whose sum is σ = 5075663040. Its totient is φ = 2942884224.

The previous prime is 3946403893. The next prime is 3946403933. The reversal of 3946403905 is 5093046493.

It is not a de Polignac number, because 3946403905 - 2⁷ = 3946403777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28391326 + ... + 28391464.

It is an arithmetic number, because the mean of its divisors is an integer number (105742980).

Almost surely, 2^3946403905 is an apocalyptic number.

It is an amenable number.

3946403905 is a deficient number, since it is larger than the sum of its proper divisors (1129259135).

3946403905 is a wasteful number, since it uses less digits than its factorization.

3946403905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 43.

The square root of 3946403905 is about 62820.4099397640. The cubic root of 3946403905 is about 1580.2792735256.

The spelling of 3946403905 in words is "three billion, nine hundred forty-six million, four hundred three thousand, nine hundred five".