18246026 has 4 divisors (see below), whose sum is σ = 27369042. Its totient is φ = 9123012.

The previous prime is 18245999. The next prime is 18246029. The reversal of 18246026 is 62064281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17682025 + 564001 = 4205^2 + 751^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18246026.

It is not an unprimeable number, because it can be changed into a prime (18246029) 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 as a sum of consecutive naturals, namely, 4561505 + ... + 4561508.

Almost surely, 2^18246026 is an apocalyptic number.

18246026 is a deficient number, since it is larger than the sum of its proper divisors (9123016).

18246026 is an equidigital number, since it uses as much as digits as its factorization.

18246026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9123015.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 18246026 is about 4271.5367258166. The cubic root of 18246026 is about 263.2627598449.

The spelling of 18246026 in words is "eighteen million, two hundred forty-six thousand, twenty-six".