4400019120 has 80 divisors (see below), whose sum is σ = 15588645120. Its totient is φ = 1005718272.

The previous prime is 4400019119. The next prime is 4400019149. The reversal of 4400019120 is 219100044.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1307850 + ... + 1311209.

It is an arithmetic number, because the mean of its divisors is an integer number (194858064).

Almost surely, 2^4400019120 is an apocalyptic number.

4400019120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4400019120 is an abundant number, since it is smaller than the sum of its proper divisors (11188626000).

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

4400019120 is a wasteful number, since it uses less digits than its factorization.

4400019120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619082 (or 2619076 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 4400019120 is about 66332.6399293741. The cubic root of 4400019120 is about 1638.6449147467.

Adding to 4400019120 its reverse (219100044), we get a palindrome (4619119164).

The spelling of 4400019120 in words is "four billion, four hundred million, nineteen thousand, one hundred twenty".