3861340284 has 72 divisors (see below), whose sum is σ = 9800353920. Its totient is φ = 1179969120.

The previous prime is 3861340279. The next prime is 3861340291. The reversal of 3861340284 is 4820431683.

It is a happy number.

3861340284 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210297 + ... + 227919.

Almost surely, 2^3861340284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3861340284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4900176960).

3861340284 is an abundant number, since it is smaller than the sum of its proper divisors (5939013636).

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

3861340284 is a wasteful number, since it uses less digits than its factorization.

3861340284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17711 (or 17678 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 3861340284 is about 62139.6836490177. The cubic root of 3861340284 is about 1568.8425460892.

The spelling of 3861340284 in words is "three billion, eight hundred sixty-one million, three hundred forty thousand, two hundred eighty-four".