13840622 has 4 divisors (see below), whose sum is σ = 20760936. Its totient is φ = 6920310.

The previous prime is 13840621. The next prime is 13840643. The reversal of 13840622 is 22604831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22604831 = 61 ⋅370571.

It is a junction number, because it is equal to n+sod(n) for n = 13840591 and 13840600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13840621) 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 as a sum of consecutive naturals, namely, 3460154 + ... + 3460157.

It is an arithmetic number, because the mean of its divisors is an integer number (5190234).

Almost surely, 2^13840622 is an apocalyptic number.

13840622 is a deficient number, since it is larger than the sum of its proper divisors (6920314).

13840622 is an equidigital number, since it uses as much as digits as its factorization.

13840622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6920313.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 13840622 is about 3720.2986439263. The cubic root of 13840622 is about 240.0961536015.

The spelling of 13840622 in words is "thirteen million, eight hundred forty thousand, six hundred twenty-two".