3909644682 has 16 divisors (see below), whose sum is σ = 7866113472. Its totient is φ = 1295410880.

The previous prime is 3909644677. The next prime is 3909644689. The reversal of 3909644682 is 2864469093.

It is a super-2 number, since 2×3909644682² = 30570643078981762248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3909644689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1949919 + ... + 1951922.

It is an arithmetic number, because the mean of its divisors is an integer number (491632092).

Almost surely, 2^3909644682 is an apocalyptic number.

3909644682 is an abundant number, since it is smaller than the sum of its proper divisors (3956468790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3909644682 is a wasteful number, since it uses less digits than its factorization.

3909644682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902013.

The product of its (nonzero) digits is 2239488, while the sum is 51.

The square root of 3909644682 is about 62527.1515583430. The cubic root of 3909644682 is about 1575.3573969487.

The spelling of 3909644682 in words is "three billion, nine hundred nine million, six hundred forty-four thousand, six hundred eighty-two".