398273207800 has 144 divisors (see below), whose sum is σ = 1016822620080. Its totient is φ = 144982656000.

The previous prime is 398273207779. The next prime is 398273207809. The reversal of 398273207800 is 8702372893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398273207809) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2316820 + ... + 2482780.

It is an arithmetic number, because the mean of its divisors is an integer number (7061268195).

Almost surely, 2^398273207800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398273207800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508411310040).

398273207800 is an abundant number, since it is smaller than the sum of its proper divisors (618549412280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398273207800 is a wasteful number, since it uses less digits than its factorization.

398273207800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166074 (or 166052 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 398273207800 in words is "three hundred ninety-eight billion, two hundred seventy-three million, two hundred seven thousand, eight hundred".