383438 has 16 divisors (see below), whose sum is σ = 650160. Its totient is φ = 168000.

The previous prime is 383429. The next prime is 383459. The reversal of 383438 is 834383.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 383438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (40635).

2³⁸³⁴³⁸ is an apocalyptic number.

383438 is a deficient number, since it is larger than the sum of its proper divisors (266722).

383438 is a wasteful number, since it uses less digits than its factorization.

383438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643.

The product of its digits is 6912, while the sum is 29.

The square root of 383438 is about 619.2237075565. The cubic root of 383438 is about 72.6493473112.

The spelling of 383438 in words is "three hundred eighty-three thousand, four hundred thirty-eight".