393442244393 has 24 divisors (see below), whose sum is σ = 467601336576. Its totient is φ = 327919039200.

The previous prime is 393442244383. The next prime is 393442244407.

393442244393 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 393442244393 - 2¹⁸ = 393441982249 is a prime.

It is a super-3 number, since 3×393442244393³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (393442244303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1474946 + ... + 1721147.

It is an arithmetic number, because the mean of its divisors is an integer number (19483389024).

Almost surely, 2^393442244393 is an apocalyptic number.

It is an amenable number.

393442244393 is a deficient number, since it is larger than the sum of its proper divisors (74159092183).

393442244393 is a wasteful number, since it uses less digits than its factorization.

393442244393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196173 (or 3196154 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 50.

The spelling of 393442244393 in words is "three hundred ninety-three billion, four hundred forty-two million, two hundred forty-four thousand, three hundred ninety-three".