398248203756 has 192 divisors, whose sum is σ = 1031540686848. Its totient is φ = 118826652672.

The previous prime is 398248203733. The next prime is 398248203817. The reversal of 398248203756 is 657302842893.

It is a junction number, because it is equal to n+sod(n) for n = 398248203696 and 398248203705.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 364361946 + ... + 364363038.

It is an arithmetic number, because the mean of its divisors is an integer number (5372607744).

Almost surely, 2^398248203756 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 398248203756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515770343424).

398248203756 is an abundant number, since it is smaller than the sum of its proper divisors (633292483092).

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

398248203756 is a wasteful number, since it uses less digits than its factorization.

398248203756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 398248203756 in words is "three hundred ninety-eight billion, two hundred forty-eight million, two hundred three thousand, seven hundred fifty-six".