4423947840 has 560 divisors, whose sum is σ = 17865059520. Its totient is φ = 1030164480.

The previous prime is 4423947817. The next prime is 4423947877. The reversal of 4423947840 is 487493244.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6401895 + ... + 6402585.

It is an arithmetic number, because the mean of its divisors is an integer number (31901892).

Almost surely, 2^4423947840 is an apocalyptic number.

4423947840 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 4423947840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8932529760).

4423947840 is an abundant number, since it is smaller than the sum of its proper divisors (13441111680).

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

4423947840 is a wasteful number, since it uses less digits than its factorization.

4423947840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 4423947840 is about 66512.7644892317. The cubic root of 4423947840 is about 1641.6100389250.

The spelling of 4423947840 in words is "four billion, four hundred twenty-three million, nine hundred forty-seven thousand, eight hundred forty".