3909349906 has 32 divisors (see below), whose sum is σ = 7321098240. Its totient is φ = 1521018000.

The previous prime is 3909349861. The next prime is 3909349919. The reversal of 3909349906 is 6099439093.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96631 + ... + 130981.

It is an arithmetic number, because the mean of its divisors is an integer number (228784320).

Almost surely, 2^3909349906 is an apocalyptic number.

3909349906 is a deficient number, since it is larger than the sum of its proper divisors (3411748334).

3909349906 is a wasteful number, since it uses less digits than its factorization.

3909349906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35110.

The product of its (nonzero) digits is 1417176, while the sum is 52.

The square root of 3909349906 is about 62524.7943299296. The cubic root of 3909349906 is about 1575.3178034766.

The spelling of 3909349906 in words is "three billion, nine hundred nine million, three hundred forty-nine thousand, nine hundred six".