384834618 has 48 divisors (see below), whose sum is σ = 978327360. Its totient is φ = 109843776.

The previous prime is 384834617. The next prime is 384834629. The reversal of 384834618 is 816438483.

It is a super-2 number, since 2×384834618² = 296195366422411848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (384834617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380898 + ... + 381906.

It is an arithmetic number, because the mean of its divisors is an integer number (20381820).

Almost surely, 2^384834618 is an apocalyptic number.

384834618 is an abundant number, since it is smaller than the sum of its proper divisors (593492742).

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

384834618 is an equidigital number, since it uses as much as digits as its factorization.

384834618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036 (or 1021 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 384834618 is about 19617.2020940806. The cubic root of 384834618 is about 727.3744538377.

The spelling of 384834618 in words is "three hundred eighty-four million, eight hundred thirty-four thousand, six hundred eighteen".