3829240856 has 64 divisors (see below), whose sum is σ = 8323015680. Its totient is φ = 1617696000.

The previous prime is 3829240843. The next prime is 3829240897. The reversal of 3829240856 is 6580429283.

It is a super-2 number, since 2×3829240856² = 29326171066519225472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3829240856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3490100 + ... + 3491196.

It is an arithmetic number, because the mean of its divisors is an integer number (130047120).

Almost surely, 2^3829240856 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 3829240856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4161507840).

3829240856 is an abundant number, since it is smaller than the sum of its proper divisors (4493774824).

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

3829240856 is a wasteful number, since it uses less digits than its factorization.

3829240856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944 (or 1940 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 3829240856 is about 61880.8601750170. The cubic root of 3829240856 is about 1564.4831667195.

The spelling of 3829240856 in words is "three billion, eight hundred twenty-nine million, two hundred forty thousand, eight hundred fifty-six".