13044534400 has 48 divisors (see below), whose sum is σ = 32224084290. Its totient is φ = 5217812480.

The previous prime is 13044534383. The next prime is 13044534403. The reversal of 13044534400 is 443544031.

It can be written as a sum of positive squares in 3 ways, for example, as 5205911104 + 7838623296 = 72152^2 + 88536^2 .

It is not an unprimeable number, because it can be changed into a prime (13044534403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2035009 + ... + 2041408.

Almost surely, 2^13044534400 is an apocalyptic number.

13044534400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13044534400 is an abundant number, since it is smaller than the sum of its proper divisors (19179549890).

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

13044534400 is an equidigital number, since it uses as much as digits as its factorization.

13044534400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4076441 (or 4076424 counting only the distinct ones).

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

The spelling of 13044534400 in words is "thirteen billion, forty-four million, five hundred thirty-four thousand, four hundred".