13421441 has 6 divisors (see below), whose sum is σ = 14752626. Its totient is φ = 12201200.

The previous prime is 13421437. The next prime is 13421453. The reversal of 13421441 is 14412431.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 6682225 = 2596^2 + 2585^2 .

It is not a de Polignac number, because 13421441 - 2² = 13421437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13421411) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 55340 + ... + 55581.

It is an arithmetic number, because the mean of its divisors is an integer number (2458771).

Almost surely, 2^13421441 is an apocalyptic number.

13421441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13421441 is a deficient number, since it is larger than the sum of its proper divisors (1331185).

13421441 is a wasteful number, since it uses less digits than its factorization.

13421441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110943 (or 110932 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 13421441 is about 3663.5284904038. The cubic root of 13421441 is about 237.6473899529.

Adding to 13421441 its reverse (14412431), we get a palindrome (27833872).

The spelling of 13421441 in words is "thirteen million, four hundred twenty-one thousand, four hundred forty-one".