384488285 has 4 divisors (see below), whose sum is σ = 461385948. Its totient is φ = 307590624.

The previous prime is 384488281. The next prime is 384488297. The reversal of 384488285 is 582884483.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 182223001 + 202265284 = 13499^2 + 14222^2 .

It is a cyclic number.

It is not a de Polignac number, because 384488285 - 2² = 384488281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384488281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38448824 + ... + 38448833.

It is an arithmetic number, because the mean of its divisors is an integer number (115346487).

Almost surely, 2^384488285 is an apocalyptic number.

It is an amenable number.

384488285 is a deficient number, since it is larger than the sum of its proper divisors (76897663).

384488285 is an equidigital number, since it uses as much as digits as its factorization.

384488285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76897662.

The product of its digits is 1966080, while the sum is 50.

The square root of 384488285 is about 19608.3728289728. The cubic root of 384488285 is about 727.1561874509.

It can be divided in two parts, 3844 and 88285, that added together give a palindrome (92129).

The spelling of 384488285 in words is "three hundred eighty-four million, four hundred eighty-eight thousand, two hundred eighty-five".