13041445440 has 112 divisors (see below), whose sum is σ = 41464016640. Its totient is φ = 3472896000.

The previous prime is 13041445421. The next prime is 13041445451. The reversal of 13041445440 is 4454414031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13041445398 and 13041445407.

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, 711916 + ... + 730004.

Almost surely, 2^13041445440 is an apocalyptic number.

13041445440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13041445440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20732008320).

13041445440 is an abundant number, since it is smaller than the sum of its proper divisors (28422571200).

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

13041445440 is a wasteful number, since it uses less digits than its factorization.

13041445440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18860 (or 18850 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 13041445440 its reverse (4454414031), we get a palindrome (17495859471).

The spelling of 13041445440 in words is "thirteen billion, forty-one million, four hundred forty-five thousand, four hundred forty".