13822638 has 16 divisors (see below), whose sum is σ = 28114560. Its totient is φ = 4529336.

The previous prime is 13822637. The next prime is 13822639. The reversal of 13822638 is 83622831.

It is an interprime number because it is at equal distance from previous prime (13822637) and next prime (13822639).

It is a junction number, because it is equal to n+sod(n) for n = 13822599 and 13822608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13822631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19170 + ... + 19877.

It is an arithmetic number, because the mean of its divisors is an integer number (1757160).

Almost surely, 2^13822638 is an apocalyptic number.

13822638 is an abundant number, since it is smaller than the sum of its proper divisors (14291922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13822638 is a wasteful number, since it uses less digits than its factorization.

13822638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39111.

The product of its digits is 13824, while the sum is 33.

The square root of 13822638 is about 3717.8808480101. The cubic root of 13822638 is about 239.9921177967.

The spelling of 13822638 in words is "thirteen million, eight hundred twenty-two thousand, six hundred thirty-eight".