13604022 has 24 divisors (see below), whose sum is σ = 29545464. Its totient is φ = 4523904.

The previous prime is 13604021. The next prime is 13604023. The reversal of 13604022 is 22040631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13604021) and next prime (13604023).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13603986 and 13604004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13604021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11553 + ... + 12675.

It is an arithmetic number, because the mean of its divisors is an integer number (1231061).

Almost surely, 2^13604022 is an apocalyptic number.

13604022 is an abundant number, since it is smaller than the sum of its proper divisors (15941442).

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

13604022 is a wasteful number, since it uses less digits than its factorization.

13604022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804 (or 1801 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13604022 is about 3688.3630515447. The cubic root of 13604022 is about 238.7201664065.

Adding to 13604022 its reverse (22040631), we get a palindrome (35644653).

The spelling of 13604022 in words is "thirteen million, six hundred four thousand, twenty-two".