13340445 has 8 divisors (see below), whose sum is σ = 21344736. Its totient is φ = 7114896.

The previous prime is 13340443. The next prime is 13340473. The reversal of 13340445 is 54404331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13340445 - 2¹ = 13340443 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444667 + ... + 444696.

It is an arithmetic number, because the mean of its divisors is an integer number (2668092).

Almost surely, 2^13340445 is an apocalyptic number.

13340445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13340445 is a deficient number, since it is larger than the sum of its proper divisors (8004291).

13340445 is an equidigital number, since it uses as much as digits as its factorization.

13340445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889371.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 13340445 is about 3652.4573919486. The cubic root of 13340445 is about 237.1683718719.

Adding to 13340445 its reverse (54404331), we get a palindrome (67744776).

The spelling of 13340445 in words is "thirteen million, three hundred forty thousand, four hundred forty-five".