3909449630 has 32 divisors (see below), whose sum is σ = 7235645760. Its totient is φ = 1519924480.

The previous prime is 3909449629. The next prime is 3909449683. The reversal of 3909449630 is 369449093.

It is a happy number.

It is a congruent number.

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, 92567 + ... + 128013.

It is an arithmetic number, because the mean of its divisors is an integer number (226113930).

Almost surely, 2^3909449630 is an apocalyptic number.

3909449630 is a deficient number, since it is larger than the sum of its proper divisors (3326196130).

3909449630 is a wasteful number, since it uses less digits than its factorization.

3909449630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35764.

The product of its (nonzero) digits is 629856, while the sum is 47.

The square root of 3909449630 is about 62525.5918004780. The cubic root of 3909449630 is about 1575.3311983428.

The spelling of 3909449630 in words is "three billion, nine hundred nine million, four hundred forty-nine thousand, six hundred thirty".