3689808140 has 24 divisors (see below), whose sum is σ = 7823830560. Its totient is φ = 1461593088.

The previous prime is 3689808107. The next prime is 3689808169. The reversal of 3689808140 is 418089863.

It is a super-2 number, since 2×3689808140² = 27229368220020519200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893525 + ... + 897644.

It is an arithmetic number, because the mean of its divisors is an integer number (325992940).

Almost surely, 2^3689808140 is an apocalyptic number.

It is an amenable number.

3689808140 is an abundant number, since it is smaller than the sum of its proper divisors (4134022420).

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

3689808140 is a wasteful number, since it uses less digits than its factorization.

3689808140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791281 (or 1791279 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 3689808140 is about 60743.7909584181. The cubic root of 3689808140 is about 1545.2589281965.

The spelling of 3689808140 in words is "three billion, six hundred eighty-nine million, eight hundred eight thousand, one hundred forty".