13144030440 has 32 divisors (see below), whose sum is σ = 39432091680. Its totient is φ = 3505074752.

The previous prime is 13144030421. The next prime is 13144030457. The reversal of 13144030440 is 4403044131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13144030440.

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, 54766674 + ... + 54766913.

It is an arithmetic number, because the mean of its divisors is an integer number (1232252865).

Almost surely, 2^13144030440 is an apocalyptic number.

13144030440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144030440 is an abundant number, since it is smaller than the sum of its proper divisors (26288061240).

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

13144030440 is a wasteful number, since it uses less digits than its factorization.

13144030440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109533601 (or 109533597 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13144030440 its reverse (4403044131), we get a palindrome (17547074571).

The spelling of 13144030440 in words is "thirteen billion, one hundred forty-four million, thirty thousand, four hundred forty".