398227722893 has 64 divisors (see below), whose sum is σ = 538358876160. Its totient is φ = 284475628800.

The previous prime is 398227722863. The next prime is 398227722901.

398227722893 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 398227722893 - 2¹⁸ = 398227460749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398227722863) 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 63 ways as a sum of consecutive naturals, for example, 91776518 + ... + 91780856.

It is an arithmetic number, because the mean of its divisors is an integer number (8411857440).

Almost surely, 2^398227722893 is an apocalyptic number.

It is an amenable number.

398227722893 is a deficient number, since it is larger than the sum of its proper divisors (140131153267).

398227722893 is a wasteful number, since it uses less digits than its factorization.

398227722893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4978.

The product of its digits is 36578304, while the sum is 62.

The spelling of 398227722893 in words is "three hundred ninety-eight billion, two hundred twenty-seven million, seven hundred twenty-two thousand, eight hundred ninety-three".