13401320 has 16 divisors (see below), whose sum is σ = 30153060. Its totient is φ = 5360512.

The previous prime is 13401317. The next prime is 13401329. The reversal of 13401320 is 2310431.

It can be written as a sum of positive squares in 2 ways, for example, as 13205956 + 195364 = 3634^2 + 442^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13401295 and 13401304.

It is not an unprimeable number, because it can be changed into a prime (13401329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167477 + ... + 167556.

Almost surely, 2^13401320 is an apocalyptic number.

13401320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13401320 is an abundant number, since it is smaller than the sum of its proper divisors (16751740).

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

13401320 is a wasteful number, since it uses less digits than its factorization.

13401320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335044 (or 335040 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13401320 is about 3660.7813373650. The cubic root of 13401320 is about 237.5285727397.

Adding to 13401320 its reverse (2310431), we get a palindrome (15711751).

The spelling of 13401320 in words is "thirteen million, four hundred one thousand, three hundred twenty".