3858384242220 has 24 divisors (see below), whose sum is σ = 10803475878384. Its totient is φ = 1028902464576.

The previous prime is 3858384242213. The next prime is 3858384242221. The reversal of 3858384242220 is 222424838583.

It is a super-2 number, since 2×3858384242220² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3858384242221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32153201959 + ... + 32153202078.

It is an arithmetic number, because the mean of its divisors is an integer number (450144828266).

Almost surely, 2^{3858384242220} is an apocalyptic number.

3858384242220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3858384242220 is an abundant number, since it is smaller than the sum of its proper divisors (6945091636164).

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

3858384242220 is a wasteful number, since it uses less digits than its factorization.

3858384242220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64306404049 (or 64306404047 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 51.

The spelling of 3858384242220 in words is "three trillion, eight hundred fifty-eight billion, three hundred eighty-four million, two hundred forty-two thousand, two hundred twenty".