384442620 has 48 divisors (see below), whose sum is σ = 1088549280. Its totient is φ = 101364736.

The previous prime is 384442579. The next prime is 384442621. The reversal of 384442620 is 26244483.

384442620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×384442620² = 295592256144928800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384442621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30657 + ... + 41336.

It is an arithmetic number, because the mean of its divisors is an integer number (22678110).

Almost surely, 2^384442620 is an apocalyptic number.

384442620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384442620 is an abundant number, since it is smaller than the sum of its proper divisors (704106660).

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

384442620 is a wasteful number, since it uses less digits than its factorization.

384442620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72094 (or 72092 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 384442620 is about 19607.2083683527. The cubic root of 384442620 is about 727.1273986223.

It can be divided in two parts, 3844 and 42620, that added together give a palindrome (46464).

The spelling of 384442620 in words is "three hundred eighty-four million, four hundred forty-two thousand, six hundred twenty".