383997852 has 36 divisors (see below), whose sum is σ = 1109327856. Its totient is φ = 109713600.

The previous prime is 383997851. The next prime is 383997863. The reversal of 383997852 is 258799383.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×383997852² = 294908700681227808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383997851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 761649 + ... + 762152.

Almost surely, 2^383997852 is an apocalyptic number.

It is an amenable number.

383997852 is an abundant number, since it is smaller than the sum of its proper divisors (725330004).

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

383997852 is a wasteful number, since it uses less digits than its factorization.

383997852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523818 (or 1523813 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 383997852 is about 19595.8631348558. The cubic root of 383997852 is about 726.8468818612.

The spelling of 383997852 in words is "three hundred eighty-three million, nine hundred ninety-seven thousand, eight hundred fifty-two".