3861803408 has 20 divisors (see below), whose sum is σ = 7807559808. Its totient is φ = 1846949280.

The previous prime is 3861803329. The next prime is 3861803423. The reversal of 3861803408 is 8043081683.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5246648 + ... + 5247383.

Almost surely, 2^3861803408 is an apocalyptic number.

It is an amenable number.

3861803408 is an abundant number, since it is smaller than the sum of its proper divisors (3945756400).

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

3861803408 is a wasteful number, since it uses less digits than its factorization.

3861803408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10494062 (or 10494056 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 3861803408 is about 62143.4100126474. The cubic root of 3861803408 is about 1568.9052652088.

The spelling of 3861803408 in words is "three billion, eight hundred sixty-one million, eight hundred three thousand, four hundred eight".