398800044 has 96 divisors (see below), whose sum is σ = 1098944000. Its totient is φ = 124711488.

The previous prime is 398800033. The next prime is 398800069. The reversal of 398800044 is 440008893.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 398799981 and 398800008.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222777 + ... + 224559.

Almost surely, 2^398800044 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 398800044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549472000).

398800044 is an abundant number, since it is smaller than the sum of its proper divisors (700143956).

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

398800044 is a wasteful number, since it uses less digits than its factorization.

398800044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924 (or 1916 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 398800044 is about 19969.9785678403. The cubic root of 398800044 is about 736.0687824620.

The spelling of 398800044 in words is "three hundred ninety-eight million, eight hundred thousand, forty-four".