5144125440 has 112 divisors (see below), whose sum is σ = 16460589888. Its totient is φ = 1371734016.

The previous prime is 5144125439. The next prime is 5144125447. The reversal of 5144125440 is 445214415.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5144125398 and 5144125407.

It is not an unprimeable number, because it can be changed into a prime (5144125447) 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, 101949 + ... + 143811.

Almost surely, 2^5144125440 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 5144125440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8230294944).

5144125440 is an abundant number, since it is smaller than the sum of its proper divisors (11316464448).

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

5144125440 is an equidigital number, since it uses as much as digits as its factorization.

5144125440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41897 (or 41873 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 5144125440 is about 71722.5587942873. The cubic root of 5144125440 is about 1726.2506301423.

Adding to 5144125440 its reverse (445214415), we get a palindrome (5589339855).

The spelling of 5144125440 in words is "five billion, one hundred forty-four million, one hundred twenty-five thousand, four hundred forty".