5205230440 has 64 divisors (see below), whose sum is σ = 12030197760. Its totient is φ = 2025761280.

The previous prime is 5205230423. The next prime is 5205230449. The reversal of 5205230440 is 440325025.

It is not an unprimeable number, because it can be changed into a prime (5205230449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623977 + ... + 632263.

It is an arithmetic number, because the mean of its divisors is an integer number (187971840).

Almost surely, 2^5205230440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5205230440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6015098880).

5205230440 is an abundant number, since it is smaller than the sum of its proper divisors (6824967320).

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

5205230440 is a wasteful number, since it uses less digits than its factorization.

5205230440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8722 (or 8718 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 5205230440 is about 72147.2829703240. The cubic root of 5205230440 is about 1733.0588893232.

Adding to 5205230440 its reverse (440325025), we get a palindrome (5645555465).

The spelling of 5205230440 in words is "five billion, two hundred five million, two hundred thirty thousand, four hundred forty".