13144422340 has 48 divisors (see below), whose sum is σ = 31978783872. Its totient is φ = 4444920576.

The previous prime is 13144422331. The next prime is 13144422377. The reversal of 13144422340 is 4322444131.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 13144422299 and 13144422308.

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, 632854 + ... + 653293.

It is an arithmetic number, because the mean of its divisors is an integer number (666224664).

Almost surely, 2^13144422340 is an apocalyptic number.

13144422340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144422340 is an abundant number, since it is smaller than the sum of its proper divisors (18834361532).

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

13144422340 is a wasteful number, since it uses less digits than its factorization.

13144422340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286236 (or 1286234 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 13144422340 its reverse (4322444131), we get a palindrome (17466866471).

The spelling of 13144422340 in words is "thirteen billion, one hundred forty-four million, four hundred twenty-two thousand, three hundred forty".