13440053224 has 64 divisors (see below), whose sum is σ = 28369152000. Its totient is φ = 5926901760.

The previous prime is 13440053117. The next prime is 13440053233. The reversal of 13440053224 is 42235004431.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13440053192 and 13440053201.

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, 228312 + ... + 281080.

It is an arithmetic number, because the mean of its divisors is an integer number (443268000).

Almost surely, 2^13440053224 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 13440053224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14184576000).

13440053224 is an abundant number, since it is smaller than the sum of its proper divisors (14929098776).

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

13440053224 is a wasteful number, since it uses less digits than its factorization.

13440053224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52898 (or 52894 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 13440053224 its reverse (42235004431), we get a palindrome (55675057655).

The spelling of 13440053224 in words is "thirteen billion, four hundred forty million, fifty-three thousand, two hundred twenty-four".