3856823040 has 144 divisors (see below), whose sum is σ = 14077502208. Its totient is φ = 881553408.

The previous prime is 3856823023. The next prime is 3856823051. The reversal of 3856823040 is 403286583.

It is a self number, because there is not a number n which added to its sum of digits gives 3856823040.

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, 44862 + ... + 98621.

It is an arithmetic number, because the mean of its divisors is an integer number (97760432).

Almost surely, 2^3856823040 is an apocalyptic number.

3856823040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3856823040 is an abundant number, since it is smaller than the sum of its proper divisors (10220679168).

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

3856823040 is a wasteful number, since it uses less digits than its factorization.

3856823040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143514 (or 143500 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 3856823040 is about 62103.3255148225. The cubic root of 3856823040 is about 1568.2305297595.

The spelling of 3856823040 in words is "three billion, eight hundred fifty-six million, eight hundred twenty-three thousand, forty".