383804388 has 72 divisors (see below), whose sum is σ = 1060637760. Its totient is φ = 116055360.

The previous prime is 383804297. The next prime is 383804411. The reversal of 383804388 is 883408383.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280081 + ... + 281447.

It is an arithmetic number, because the mean of its divisors is an integer number (14731080).

Almost surely, 2^383804388 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 383804388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530318880).

383804388 is an abundant number, since it is smaller than the sum of its proper divisors (676833372).

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

383804388 is a wasteful number, since it uses less digits than its factorization.

383804388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097 (or 2092 counting only the distinct ones).

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

The square root of 383804388 is about 19590.9261649367. The cubic root of 383804388 is about 726.7247958250.

The spelling of 383804388 in words is "three hundred eighty-three million, eight hundred four thousand, three hundred eighty-eight".