18052422 has 16 divisors (see below), whose sum is σ = 36251712. Its totient is φ = 5993000.

The previous prime is 18052421. The next prime is 18052427. The reversal of 18052422 is 22425081.

Added to its reverse (22425081) it gives a triangular number (40477503 = T₈₉₉₇).

It is a junction number, because it is equal to n+sod(n) for n = 18052392 and 18052401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18052421) 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, 4488 + ... + 7499.

It is an arithmetic number, because the mean of its divisors is an integer number (2265732).

Almost surely, 2^18052422 is an apocalyptic number.

18052422 is an abundant number, since it is smaller than the sum of its proper divisors (18199290).

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

18052422 is a wasteful number, since it uses less digits than its factorization.

18052422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12243.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 18052422 is about 4248.8141875116. The cubic root of 18052422 is about 262.3283085892.

Adding to 18052422 its reverse (22425081), we get a triangular number (40477503 = T₈₉₉₇).

The spelling of 18052422 in words is "eighteen million, fifty-two thousand, four hundred twenty-two".