14024400520 has 64 divisors (see below), whose sum is σ = 34019501040. Its totient is φ = 5172556800.

The previous prime is 14024400497. The next prime is 14024400539. The reversal of 14024400520 is 2500442041.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8787562564 + 5236837956 = 93742^2 + 72366^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14024400491 and 14024400500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474990 + ... + 503650.

Almost surely, 2^14024400520 is an apocalyptic number.

14024400520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14024400520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17009750520).

14024400520 is an abundant number, since it is smaller than the sum of its proper divisors (19995100520).

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

14024400520 is a wasteful number, since it uses less digits than its factorization.

14024400520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29626 (or 29622 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 14024400520 its reverse (2500442041), we get a palindrome (16524842561).

The spelling of 14024400520 in words is "fourteen billion, twenty-four million, four hundred thousand, five hundred twenty".