398334433893 has 16 divisors (see below), whose sum is σ = 579801632256. Its totient is φ = 241245603440.

The previous prime is 398334433853. The next prime is 398334433921.

It is a happy number.

398334433893 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 398334433893 - 2²⁵ = 398300879461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398334433813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4182321 + ... + 4276502.

It is an arithmetic number, because the mean of its divisors is an integer number (36237602016).

Almost surely, 2^398334433893 is an apocalyptic number.

398334433893 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

398334433893 is a deficient number, since it is larger than the sum of its proper divisors (181467198363).

398334433893 is a wasteful number, since it uses less digits than its factorization.

398334433893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8460264.

The product of its digits is 60466176, while the sum is 60.

The spelling of 398334433893 in words is "three hundred ninety-eight billion, three hundred thirty-four million, four hundred thirty-three thousand, eight hundred ninety-three".