398888408573 has 16 divisors (see below), whose sum is σ = 420615241920. Its totient is φ = 377235398016.

The previous prime is 398888408557. The next prime is 398888408623. The reversal of 398888408573 is 375804888893.

It is a cyclic number.

It is not a de Polignac number, because 398888408573 - 2⁴ = 398888408557 is a prime.

It is a super-2 number, since 2×398888408573² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 398888408497 and 398888408506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398888408873) 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, 31770065 + ... + 31782617.

It is an arithmetic number, because the mean of its divisors is an integer number (26288452620).

Almost surely, 2^398888408573 is an apocalyptic number.

It is an amenable number.

398888408573 is a deficient number, since it is larger than the sum of its proper divisors (21726833347).

398888408573 is a wasteful number, since it uses less digits than its factorization.

398888408573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15356.

The product of its (nonzero) digits is 371589120, while the sum is 71.

The spelling of 398888408573 in words is "three hundred ninety-eight billion, eight hundred eighty-eight million, four hundred eight thousand, five hundred seventy-three".