13420043 has 16 divisors (see below), whose sum is σ = 16712640. Its totient is φ = 10492416.

The previous prime is 13420037. The next prime is 13420049. The reversal of 13420043 is 34002431.

It is an interprime number because it is at equal distance from previous prime (13420037) and next prime (13420049).

It is a cyclic number.

It is not a de Polignac number, because 13420043 - 2²² = 9225739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13420049) 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 15 ways as a sum of consecutive naturals, for example, 7271 + ... + 8927.

It is an arithmetic number, because the mean of its divisors is an integer number (1044540).

Almost surely, 2^13420043 is an apocalyptic number.

13420043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13420043 is a deficient number, since it is larger than the sum of its proper divisors (3292597).

13420043 is a wasteful number, since it uses less digits than its factorization.

13420043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13420043 is about 3663.3376857724. The cubic root of 13420043 is about 237.6391384150.

Adding to 13420043 its reverse (34002431), we get a palindrome (47422474).

The spelling of 13420043 in words is "thirteen million, four hundred twenty thousand, forty-three".