383493869 has 16 divisors (see below), whose sum is σ = 432855360. Its totient is φ = 336720000.

The previous prime is 383493833. The next prime is 383493917. The reversal of 383493869 is 968394383.

It is a cyclic number.

It is not a de Polignac number, because 383493869 - 2²⁰ = 382445293 is a prime.

It is a super-2 number, since 2×383493869² = 294135095121178322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 383493869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383493829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41342 + ... + 49760.

It is an arithmetic number, because the mean of its divisors is an integer number (27053460).

Almost surely, 2^383493869 is an apocalyptic number.

It is an amenable number.

383493869 is a deficient number, since it is larger than the sum of its proper divisors (49361491).

383493869 is a wasteful number, since it uses less digits than its factorization.

383493869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8572.

The product of its digits is 3359232, while the sum is 53.

The square root of 383493869 is about 19582.9994893530. Note that the first 3 decimals coincide. The cubic root of 383493869 is about 726.5287560810.

The spelling of 383493869 in words is "three hundred eighty-three million, four hundred ninety-three thousand, eight hundred sixty-nine".