383431936 has 36 divisors (see below), whose sum is σ = 774011700. Its totient is φ = 189550592.

The previous prime is 383431933. The next prime is 383431949. The reversal of 383431936 is 639134383.

It can be written as a sum of positive squares in 2 ways, for example, as 32993536 + 350438400 = 5744^2 + 18720^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383431933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14370 + ... + 31198.

It is an arithmetic number, because the mean of its divisors is an integer number (21500325).

Almost surely, 2^383431936 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 383431936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387005850).

383431936 is an abundant number, since it is smaller than the sum of its proper divisors (390579764).

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

383431936 is an equidigital number, since it uses as much as digits as its factorization.

383431936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934 (or 16920 counting only the distinct ones).

The product of its digits is 139968, while the sum is 40.

The square root of 383431936 is about 19581.4181304624. The cubic root of 383431936 is about 726.4896433063.

The spelling of 383431936 in words is "three hundred eighty-three million, four hundred thirty-one thousand, nine hundred thirty-six".