5123404420 has 48 divisors (see below), whose sum is σ = 11019919680. Its totient is φ = 1999783296.

The previous prime is 5123404373. The next prime is 5123404423. The reversal of 5123404420 is 244043215.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5123404423) 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, 1178611 + ... + 1182949.

It is an arithmetic number, because the mean of its divisors is an integer number (229581660).

Almost surely, 2^5123404420 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 5123404420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5509959840).

5123404420 is an abundant number, since it is smaller than the sum of its proper divisors (5896515260).

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

5123404420 is a wasteful number, since it uses less digits than its factorization.

5123404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5764 (or 5762 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 5123404420 is about 71577.9604347595. The cubic root of 5123404420 is about 1723.9296778324.

Adding to 5123404420 its reverse (244043215), we get a palindrome (5367447635).

The spelling of 5123404420 in words is "five billion, one hundred twenty-three million, four hundred four thousand, four hundred twenty".