393412252289 has 8 divisors (see below), whose sum is σ = 449619967488. Its totient is φ = 337206028320.

The previous prime is 393412252279. The next prime is 393412252313. The reversal of 393412252289 is 982252214393.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 393412252289 - 2²⁴ = 393395475073 is a prime.

It is a super-2 number, since 2×393412252289² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393412252229) 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 7 ways as a sum of consecutive naturals, for example, 265349 + ... + 925869.

It is an arithmetic number, because the mean of its divisors is an integer number (56202495936).

Almost surely, 2^393412252289 is an apocalyptic number.

It is an amenable number.

393412252289 is a deficient number, since it is larger than the sum of its proper divisors (56207715199).

393412252289 is an equidigital number, since it uses as much as digits as its factorization.

393412252289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745615.

The product of its digits is 1866240, while the sum is 50.

The spelling of 393412252289 in words is "three hundred ninety-three billion, four hundred twelve million, two hundred fifty-two thousand, two hundred eighty-nine".