383400 has 96 divisors (see below), whose sum is σ = 1339200. Its totient is φ = 100800.

The previous prime is 383399. The next prime is 383417. The reversal of 383400 is 4383.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 5365 + ... + 5435.

It is an arithmetic number, because the mean of its divisors is an integer number (13950).

2³⁸³⁴⁰⁰ is an apocalyptic number.

383400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 383400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669600).

383400 is an abundant number, since it is smaller than the sum of its proper divisors (955800).

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

383400 is a wasteful number, since it uses less digits than its factorization.

383400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 383400 is about 619.1930232165. The cubic root of 383400 is about 72.6469473001.

Adding to 383400 its reverse (4383), we get a palindrome (387783).

The spelling of 383400 in words is "three hundred eighty-three thousand, four hundred".