3880387818 has 24 divisors (see below), whose sum is σ = 8415283968. Its totient is φ = 1292266152.

The previous prime is 3880387817. The next prime is 3880387829. The reversal of 3880387818 is 8187830883.

It is a super-2 number, since 2×3880387818² = 30114819236165602248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3880387817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79596 + ... + 118727.

It is an arithmetic number, because the mean of its divisors is an integer number (350636832).

Almost surely, 2^3880387818 is an apocalyptic number.

3880387818 is an abundant number, since it is smaller than the sum of its proper divisors (4534896150).

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

3880387818 is a wasteful number, since it uses less digits than its factorization.

3880387818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199418 (or 199415 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The square root of 3880387818 is about 62292.7589531881. The cubic root of 3880387818 is about 1571.4179541093.

It can be divided in two parts, 38803 and 87818, that added together give a palindrome (126621).

The spelling of 3880387818 in words is "three billion, eight hundred eighty million, three hundred eighty-seven thousand, eight hundred eighteen".