4400000000 has 198 divisors, whose sum is σ = 11994134484. Its totient is φ = 1600000000.

The previous prime is 4399999991. The next prime is 4400000021. The reversal of 4400000000 is 44.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 399999995 + ... + 400000005.

Almost surely, 2^4400000000 is an apocalyptic number.

4400000000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4400000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5997067242).

4400000000 is an abundant number, since it is smaller than the sum of its proper divisors (7594134484).

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

4400000000 is an frugal number, since it uses more digits than its factorization.

4400000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 4400000000 is about 66332.4958071080. The cubic root of 4400000000 is about 1638.6425412013.

Adding to 4400000000 its reverse (44), we get a palindrome (4400000044).

Multiplying 4400000000 by its reverse (44), we get a square (193600000000 = 440000²).

4400000000 divided by its reverse (44) gives a 8-th power (100000000 = 10⁸).

It can be divided in two parts, 4 and 400000000, that multiplied together give a 4-th power (1600000000 = 200⁴).

The spelling of 4400000000 in words is "four billion, four hundred million", and thus it is an aban number.