398243342893 has 8 divisors (see below), whose sum is σ = 436958541216. Its totient is φ = 359946687600.

The previous prime is 398243342863. The next prime is 398243342899.

398243342893 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 398243342893 - 2¹³ = 398243334701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398243342899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104633763 + ... + 104637568.

It is an arithmetic number, because the mean of its divisors is an integer number (54619817652).

Almost surely, 2^398243342893 is an apocalyptic number.

It is an amenable number.

398243342893 is a deficient number, since it is larger than the sum of its proper divisors (38715198323).

398243342893 is a wasteful number, since it uses less digits than its factorization.

398243342893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209271515.

The product of its digits is 26873856, while the sum is 58.

The spelling of 398243342893 in words is "three hundred ninety-eight billion, two hundred forty-three million, three hundred forty-two thousand, eight hundred ninety-three".