18226078 has 16 divisors (see below), whose sum is σ = 30393216. Its totient is φ = 8140320.

The previous prime is 18226067. The next prime is 18226079. The reversal of 18226078 is 87062281.

It is a super-3 number, since 3×18226078³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18226079) 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, 10501 + ... + 12112.

It is an arithmetic number, because the mean of its divisors is an integer number (1899576).

Almost surely, 2^18226078 is an apocalyptic number.

18226078 is a deficient number, since it is larger than the sum of its proper divisors (12167138).

18226078 is a wasteful number, since it uses less digits than its factorization.

18226078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22659.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 18226078 is about 4269.2010962240. The cubic root of 18226078 is about 263.1667849642.

The spelling of 18226078 in words is "eighteen million, two hundred twenty-six thousand, seventy-eight".