3909480638 has 8 divisors (see below), whose sum is σ = 6701966832. Its totient is φ = 1675491696.

The previous prime is 3909480623. The next prime is 3909480677. The reversal of 3909480638 is 8360849093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139624295 + ... + 139624322.

It is an arithmetic number, because the mean of its divisors is an integer number (837745854).

Almost surely, 2^3909480638 is an apocalyptic number.

3909480638 is a deficient number, since it is larger than the sum of its proper divisors (2792486194).

3909480638 is a wasteful number, since it uses less digits than its factorization.

3909480638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279248626.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 3909480638 is about 62525.8397624534. The cubic root of 3909480638 is about 1575.3353632718.

The spelling of 3909480638 in words is "three billion, nine hundred nine million, four hundred eighty thousand, six hundred thirty-eight".