18074806 has 4 divisors (see below), whose sum is σ = 27112212. Its totient is φ = 9037402.

The previous prime is 18074789. The next prime is 18074831. The reversal of 18074806 is 60847081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60847081 = 619 ⋅98299.

It is a super-2 number, since 2×18074806² = 653397223875272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4518700 + ... + 4518703.

It is an arithmetic number, because the mean of its divisors is an integer number (6778053).

Almost surely, 2^18074806 is an apocalyptic number.

18074806 is a deficient number, since it is larger than the sum of its proper divisors (9037406).

18074806 is an equidigital number, since it uses as much as digits as its factorization.

18074806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9037405.

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

The square root of 18074806 is about 4251.4475181989. The cubic root of 18074806 is about 262.4366879813.

The spelling of 18074806 in words is "eighteen million, seventy-four thousand, eight hundred six".