5323223440 has 20 divisors (see below), whose sum is σ = 12376494684. Its totient is φ = 2129289344.

The previous prime is 5323223387. The next prime is 5323223449. The reversal of 5323223440 is 443223235.

It can be written as a sum of positive squares in 2 ways, for example, as 1808630784 + 3514592656 = 42528^2 + 59284^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 5323223399 and 5323223408.

It is not an unprimeable number, because it can be changed into a prime (5323223449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33270067 + ... + 33270226.

Almost surely, 2^5323223440 is an apocalyptic number.

It is an amenable number.

5323223440 is an abundant number, since it is smaller than the sum of its proper divisors (7053271244).

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

5323223440 is a wasteful number, since it uses less digits than its factorization.

5323223440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66540306 (or 66540300 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 5323223440 is about 72960.4237926288. The cubic root of 5323223440 is about 1746.0562555052.

Adding to 5323223440 its reverse (443223235), we get a palindrome (5766446675).

The spelling of 5323223440 in words is "five billion, three hundred twenty-three million, two hundred twenty-three thousand, four hundred forty".