13440202220 has 24 divisors (see below), whose sum is σ = 28230660864. Its totient is φ = 5374893056.

The previous prime is 13440202219. The next prime is 13440202231. The reversal of 13440202220 is 2220204431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13440202192 and 13440202201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21557 + ... + 165363.

It is an arithmetic number, because the mean of its divisors is an integer number (1176277536).

Almost surely, 2^13440202220 is an apocalyptic number.

13440202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13440202220 is an abundant number, since it is smaller than the sum of its proper divisors (14790458644).

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

13440202220 is a wasteful number, since it uses less digits than its factorization.

13440202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148489 (or 148487 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 13440202220 its reverse (2220204431), we get a palindrome (15660406651).

The spelling of 13440202220 in words is "thirteen billion, four hundred forty million, two hundred two thousand, two hundred twenty".