383812 has 36 divisors (see below), whose sum is σ = 808108. Its totient is φ = 158400.

The previous prime is 383807. The next prime is 383813. The reversal of 383812 is 218383.

It can be written as a sum of positive squares in 2 ways, for example, as 30976 + 352836 = 176^2 + 594^2 .

It is an Ulam number.

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 (383813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6262 + ... + 6322.

2³⁸³⁸¹² is an apocalyptic number.

It is an amenable number.

383812 is an abundant number, since it is smaller than the sum of its proper divisors (424296).

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

383812 is a wasteful number, since it uses less digits than its factorization.

383812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 87 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 383812 is about 619.5256249745. The cubic root of 383812 is about 72.6729600176.

It can be divided in two parts, 38381 and 2, that added together give a palindrome (38383).

The spelling of 383812 in words is "three hundred eighty-three thousand, eight hundred twelve".