398343783804 has 192 divisors, whose sum is σ = 1027044264960. Its totient is φ = 119801088000.

The previous prime is 398343783749. The next prime is 398343783809. The reversal of 398343783804 is 408387343893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398343783809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40721394 + ... + 40731174.

It is an arithmetic number, because the mean of its divisors is an integer number (5349188880).

Almost surely, 2^398343783804 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 398343783804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513522132480).

398343783804 is an abundant number, since it is smaller than the sum of its proper divisors (628700481156).

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

398343783804 is a wasteful number, since it uses less digits than its factorization.

398343783804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9972 (or 9970 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 60.

The spelling of 398343783804 in words is "three hundred ninety-eight billion, three hundred forty-three million, seven hundred eighty-three thousand, eight hundred four".