18022026 has 16 divisors (see below), whose sum is σ = 39320928. Its totient is φ = 5461200.

The previous prime is 18022019. The next prime is 18022027. The reversal of 18022026 is 62022081.

It is a super-2 number, since 2×18022026² = 649586842289352, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18021993 and 18022011.

It is not an unprimeable number, because it can be changed into a prime (18022027) 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, 136465 + ... + 136596.

It is an arithmetic number, because the mean of its divisors is an integer number (2457558).

Almost surely, 2^18022026 is an apocalyptic number.

18022026 is an abundant number, since it is smaller than the sum of its proper divisors (21298902).

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

18022026 is a wasteful number, since it uses less digits than its factorization.

18022026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273077.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 18022026 is about 4245.2356825034. The cubic root of 18022026 is about 262.1809929779.

It can be divided in two parts, 1802 and 2026, that added together give a triangular number (3828 = T₈₇).

The spelling of 18022026 in words is "eighteen million, twenty-two thousand, twenty-six".