3905683449 has 16 divisors (see below), whose sum is σ = 5345760000. Its totient is φ = 2535601536.

The previous prime is 3905683447. The next prime is 3905683469. The reversal of 3905683449 is 9443865093.

It is not a de Polignac number, because 3905683449 - 2¹ = 3905683447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3905683447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95574 + ... + 130175.

It is an arithmetic number, because the mean of its divisors is an integer number (334110000).

Almost surely, 2^3905683449 is an apocalyptic number.

It is an amenable number.

3905683449 is a deficient number, since it is larger than the sum of its proper divisors (1440076551).

3905683449 is a wasteful number, since it uses less digits than its factorization.

3905683449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225904.

The product of its (nonzero) digits is 2799360, while the sum is 51.

The square root of 3905683449 is about 62495.4674276463. The cubic root of 3905683449 is about 1574.8251690040.

The spelling of 3905683449 in words is "three billion, nine hundred five million, six hundred eighty-three thousand, four hundred forty-nine".