3840945156 has 60 divisors (see below), whose sum is σ = 10077473868. Its totient is φ = 1275663168.

The previous prime is 3840945091. The next prime is 3840945179. The reversal of 3840945156 is 6515490483.

3840945156 is a `hidden beast` number, since 3 + 8 + 40 + 94 + 515 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2384759556 + 1456185600 = 48834^2 + 38160^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 68350 + ... + 111146.

Almost surely, 2^3840945156 is an apocalyptic number.

3840945156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3840945156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5038736934).

3840945156 is an abundant number, since it is smaller than the sum of its proper divisors (6236528712).

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

3840945156 is a wasteful number, since it uses less digits than its factorization.

3840945156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43090 (or 43079 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 3840945156 is about 61975.3592647917. The cubic root of 3840945156 is about 1566.0755237281.

The spelling of 3840945156 in words is "three billion, eight hundred forty million, nine hundred forty-five thousand, one hundred fifty-six".