383638 has 8 divisors (see below), whose sum is σ = 578088. Its totient is φ = 190944.

The previous prime is 383633. The next prime is 383651. The reversal of 383638 is 836383.

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645 + ... + 1087.

It is an arithmetic number, because the mean of its divisors is an integer number (72261).

2³⁸³⁶³⁸ is an apocalyptic number.

383638 is a deficient number, since it is larger than the sum of its proper divisors (194450).

383638 is a wasteful number, since it uses less digits than its factorization.

383638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878.

The product of its digits is 10368, while the sum is 31.

The square root of 383638 is about 619.3851790284. The cubic root of 383638 is about 72.6619763360.

The spelling of 383638 in words is "three hundred eighty-three thousand, six hundred thirty-eight".