13622043 has 16 divisors (see below), whose sum is σ = 18539136. Its totient is φ = 8895360.

The previous prime is 13622039. The next prime is 13622053. The reversal of 13622043 is 34022631.

It is a happy number.

It is not a de Polignac number, because 13622043 - 2² = 13622039 is a prime.

13622043 is a modest number, since divided by 2043 gives 1362 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13622053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56403 + ... + 56643.

It is an arithmetic number, because the mean of its divisors is an integer number (1158696).

Almost surely, 2^13622043 is an apocalyptic number.

13622043 is a deficient number, since it is larger than the sum of its proper divisors (4917093).

13622043 is a wasteful number, since it uses less digits than its factorization.

13622043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 13622043 is about 3690.8051967017. The cubic root of 13622043 is about 238.8255293139.

Adding to 13622043 its reverse (34022631), we get a palindrome (47644674).

The spelling of 13622043 in words is "thirteen million, six hundred twenty-two thousand, forty-three".