4423013440 has 56 divisors (see below), whose sum is σ = 10545638040. Its totient is φ = 1766965248.

The previous prime is 4423013431. The next prime is 4423013449. The reversal of 4423013440 is 443103244.

It is an interprime number because it is at equal distance from previous prime (4423013431) and next prime (4423013449).

It can be written as a sum of positive squares in 4 ways, for example, as 1494904896 + 2928108544 = 38664^2 + 54112^2 .

It is not an unprimeable number, because it can be changed into a prime (4423013449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256944 + ... + 273616.

It is an arithmetic number, because the mean of its divisors is an integer number (188314965).

Almost surely, 2^4423013440 is an apocalyptic number.

4423013440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4423013440 is an abundant number, since it is smaller than the sum of its proper divisors (6122624600).

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

4423013440 is a wasteful number, since it uses less digits than its factorization.

4423013440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17519 (or 17509 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4423013440 is about 66505.7399026580. The cubic root of 4423013440 is about 1641.4944537445.

Adding to 4423013440 its reverse (443103244), we get a palindrome (4866116684).

The spelling of 4423013440 in words is "four billion, four hundred twenty-three million, thirteen thousand, four hundred forty".