398063831058 has 128 divisors (see below), whose sum is σ = 989536435200. Its totient is φ = 118010640384.

The previous prime is 398063831057. The next prime is 398063831111. The reversal of 398063831058 is 850138360893.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 398063830995 and 398063831013.

It is not an unprimeable number, because it can be changed into a prime (398063831057) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1092166 + ... + 1410302.

It is an arithmetic number, because the mean of its divisors is an integer number (7730753400).

Almost surely, 2^398063831058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398063831058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494768217600).

398063831058 is an abundant number, since it is smaller than the sum of its proper divisors (591472604142).

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

398063831058 is a wasteful number, since it uses less digits than its factorization.

398063831058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318241 (or 318235 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 398063831058 in words is "three hundred ninety-eight billion, sixty-three million, eight hundred thirty-one thousand, fifty-eight".