13782241 has 8 divisors (see below), whose sum is σ = 15441984. Its totient is φ = 12190320.

The previous prime is 13782229. The next prime is 13782269. The reversal of 13782241 is 14228731.

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

It is a cyclic number.

It is not a de Polignac number, because 13782241 - 2⁷ = 13782113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13782211) 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 7 ways as a sum of consecutive naturals, for example, 16525 + ... + 17338.

It is an arithmetic number, because the mean of its divisors is an integer number (1930248).

Almost surely, 2^13782241 is an apocalyptic number.

13782241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13782241 is a deficient number, since it is larger than the sum of its proper divisors (1659743).

13782241 is a wasteful number, since it uses less digits than its factorization.

13782241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33911.

The product of its digits is 2688, while the sum is 28.

The square root of 13782241 is about 3712.4440736528. Note that the first 3 decimals coincide. The cubic root of 13782241 is about 239.7580953779.

The spelling of 13782241 in words is "thirteen million, seven hundred eighty-two thousand, two hundred forty-one".