13341440 has 72 divisors (see below), whose sum is σ = 36546720. Its totient is φ = 4571136.

The previous prime is 13341437. The next prime is 13341457. The reversal of 13341440 is 4414331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a nialpdrome in base 16.

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, 8216 + ... + 9704.

Almost surely, 2^13341440 is an apocalyptic number.

13341440 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 13341440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18273360).

13341440 is an abundant number, since it is smaller than the sum of its proper divisors (23205280).

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

13341440 is an equidigital number, since it uses as much as digits as its factorization.

13341440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13341440 is about 3652.5935990745. The cubic root of 13341440 is about 237.1742681436.

Adding to 13341440 its reverse (4414331), we get a palindrome (17755771).

The spelling of 13341440 in words is "thirteen million, three hundred forty-one thousand, four hundred forty".