4398991284 has 24 divisors (see below), whose sum is σ = 10276314048. Its totient is φ = 1464616000.

The previous prime is 4398991279. The next prime is 4398991291. The reversal of 4398991284 is 4821998934.

It is a super-2 number, since 2×4398991284² = 38702248633415937312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203592 + ... + 224159.

It is an arithmetic number, because the mean of its divisors is an integer number (428179752).

Almost surely, 2^4398991284 is an apocalyptic number.

It is an amenable number.

4398991284 is an abundant number, since it is smaller than the sum of its proper divisors (5877322764).

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

4398991284 is a wasteful number, since it uses less digits than its factorization.

4398991284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428615 (or 428613 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The square root of 4398991284 is about 66324.8918883401. The cubic root of 4398991284 is about 1638.5173100438.

The spelling of 4398991284 in words is "four billion, three hundred ninety-eight million, nine hundred ninety-one thousand, two hundred eighty-four".