13327440 has 80 divisors (see below), whose sum is σ = 47223168. Its totient is φ = 3045888.

The previous prime is 13327423. The next prime is 13327469. The reversal of 13327440 is 4472331.

It is a tau number, because it is divible by the number of its divisors (80).

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 13327440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2287 + ... + 5646.

Almost surely, 2^13327440 is an apocalyptic number.

13327440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13327440 is an abundant number, since it is smaller than the sum of its proper divisors (33895728).

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

13327440 is a wasteful number, since it uses less digits than its factorization.

13327440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7956 (or 7950 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 13327440 is about 3650.6766496089. The cubic root of 13327440 is about 237.0912785543.

Adding to 13327440 its reverse (4472331), we get a palindrome (17799771).

The spelling of 13327440 in words is "thirteen million, three hundred twenty-seven thousand, four hundred forty".