384453888 has 144 divisors (see below), whose sum is σ = 1259561856. Its totient is φ = 101376000.

The previous prime is 384453887. The next prime is 384453913. The reversal of 384453888 is 888354483.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 384453888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384453887) 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, 67138 + ... + 72638.

Almost surely, 2^384453888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 384453888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629780928).

384453888 is an abundant number, since it is smaller than the sum of its proper divisors (875107968).

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

384453888 is a wasteful number, since it uses less digits than its factorization.

384453888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540 (or 5526 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 51.

The square root of 384453888 is about 19607.4957095494. The cubic root of 384453888 is about 727.1345025793.

The spelling of 384453888 in words is "three hundred eighty-four million, four hundred fifty-three thousand, eight hundred eighty-eight".