18830226 has 8 divisors (see below), whose sum is σ = 37660464. Its totient is φ = 6276740.

The previous prime is 18830219. The next prime is 18830233. The reversal of 18830226 is 62203881.

It is an interprime number because it is at equal distance from previous prime (18830219) and next prime (18830233).

It is a sphenic number, since it is the product of 3 distinct primes.

18830226 is an admirable number.

It is a super-2 number, since 2×18830226² = 709154822422152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18830193 and 18830202.

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 in 3 ways as a sum of consecutive naturals, for example, 1569180 + ... + 1569191.

It is an arithmetic number, because the mean of its divisors is an integer number (4707558).

Almost surely, 2^18830226 is an apocalyptic number.

18830226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18830226 is a wasteful number, since it uses less digits than its factorization.

18830226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138376.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 18830226 is about 4339.3808314090. The cubic root of 18830226 is about 266.0430047115.

The spelling of 18830226 in words is "eighteen million, eight hundred thirty thousand, two hundred twenty-six".