18224810 has 8 divisors (see below), whose sum is σ = 32804676. Its totient is φ = 7289920.

The previous prime is 18224783. The next prime is 18224827. The reversal of 18224810 is 1842281.

It can be written as a sum of positive squares in 2 ways, for example, as 17230801 + 994009 = 4151^2 + 997^2 .

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

It is a super-2 number, since 2×18224810² = 664287399072200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18224810.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 911231 + ... + 911250.

Almost surely, 2^18224810 is an apocalyptic number.

18224810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18224810 is a deficient number, since it is larger than the sum of its proper divisors (14579866).

18224810 is a wasteful number, since it uses less digits than its factorization.

18224810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822488.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 18224810 is about 4269.0525881043. The cubic root of 18224810 is about 263.1606819284.

The spelling of 18224810 in words is "eighteen million, two hundred twenty-four thousand, eight hundred ten".