398804336 has 120 divisors (see below), whose sum is σ = 946546560. Its totient is φ = 162086400.

The previous prime is 398804327. The next prime is 398804381. The reversal of 398804336 is 633408893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1482410 + ... + 1482678.

It is an arithmetic number, because the mean of its divisors is an integer number (7887888).

Almost surely, 2^398804336 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 398804336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473273280).

398804336 is an abundant number, since it is smaller than the sum of its proper divisors (547742224).

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

398804336 is a wasteful number, since it uses less digits than its factorization.

398804336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 398804336 is about 19970.0860288583. The cubic root of 398804336 is about 736.0714230467.

The spelling of 398804336 in words is "three hundred ninety-eight million, eight hundred four thousand, three hundred thirty-six".