13280416 has 12 divisors (see below), whose sum is σ = 26145882. Its totient is φ = 6640192.

The previous prime is 13280413. The next prime is 13280437. The reversal of 13280416 is 61408231.

It can be written as a sum of positive squares in only one way, i.e., 12988816 + 291600 = 3604^2 + 540^2 .

It is not an unprimeable number, because it can be changed into a prime (13280413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207475 + ... + 207538.

Almost surely, 2^13280416 is an apocalyptic number.

13280416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13280416 is a deficient number, since it is larger than the sum of its proper divisors (12865466).

13280416 is an equidigital number, since it uses as much as digits as its factorization.

13280416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415023 (or 415015 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 13280416 is about 3644.2305086259. The cubic root of 13280416 is about 236.8121021938.

Adding to 13280416 its reverse (61408231), we get a palindrome (74688647).

The spelling of 13280416 in words is "thirteen million, two hundred eighty thousand, four hundred sixteen".