18042026 has 16 divisors (see below), whose sum is σ = 27861504. Its totient is φ = 8757504.

The previous prime is 18041987. The next prime is 18042029. The reversal of 18042026 is 62024081.

It is a junction number, because it is equal to n+sod(n) for n = 18041992 and 18042010.

It is not an unprimeable number, because it can be changed into a prime (18042029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16055 + ... + 17141.

It is an arithmetic number, because the mean of its divisors is an integer number (1741344).

Almost surely, 2^18042026 is an apocalyptic number.

18042026 is a deficient number, since it is larger than the sum of its proper divisors (9819478).

18042026 is a wasteful number, since it uses less digits than its factorization.

18042026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 18042026 is about 4247.5906111583. The cubic root of 18042026 is about 262.2779425171.

The spelling of 18042026 in words is "eighteen million, forty-two thousand, twenty-six".