3856430550 has 48 divisors (see below), whose sum is σ = 10930228992. Its totient is φ = 881469600.

The previous prime is 3856430507. The next prime is 3856430563. The reversal of 3856430550 is 550346583.

It is a junction number, because it is equal to n+sod(n) for n = 3856430499 and 3856430508.

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, 1835346 + ... + 1837445.

It is an arithmetic number, because the mean of its divisors is an integer number (227713104).

Almost surely, 2^3856430550 is an apocalyptic number.

3856430550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3856430550 is an abundant number, since it is smaller than the sum of its proper divisors (7073798442).

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

3856430550 is a wasteful number, since it uses less digits than its factorization.

3856430550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672813 (or 3672808 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 3856430550 is about 62100.1654587168. The cubic root of 3856430550 is about 1568.1773309069.

The spelling of 3856430550 in words is "three billion, eight hundred fifty-six million, four hundred thirty thousand, five hundred fifty".