18434022 has 16 divisors (see below), whose sum is σ = 36945072. Its totient is φ = 6131840.

The previous prime is 18434021. The next prime is 18434023. The reversal of 18434022 is 22043481.

Added to its reverse (22043481) it gives a triangular number (40477503 = T₈₉₉₇).

It is an interprime number because it is at equal distance from previous prime (18434021) and next prime (18434023).

It is a junction number, because it is equal to n+sod(n) for n = 18433983 and 18434001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18434021) 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 in 7 ways as a sum of consecutive naturals, for example, 178 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (2309067).

Almost surely, 2^18434022 is an apocalyptic number.

18434022 is an abundant number, since it is smaller than the sum of its proper divisors (18511050).

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

18434022 is a wasteful number, since it uses less digits than its factorization.

18434022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 18434022 is about 4293.4859962506. The cubic root of 18434022 is about 264.1638388421.

Adding to 18434022 its reverse (22043481), we get a triangular number (40477503 = T₈₉₉₇).

The spelling of 18434022 in words is "eighteen million, four hundred thirty-four thousand, twenty-two".