18202246 has 8 divisors (see below), whose sum is σ = 28490544. Its totient is φ = 8705400.

The previous prime is 18202243. The next prime is 18202253. The reversal of 18202246 is 64220281.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18202246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18202243) 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 3 ways as a sum of consecutive naturals, for example, 197805 + ... + 197896.

It is an arithmetic number, because the mean of its divisors is an integer number (3561318).

Almost surely, 2^18202246 is an apocalyptic number.

18202246 is a deficient number, since it is larger than the sum of its proper divisors (10288298).

18202246 is a wasteful number, since it uses less digits than its factorization.

18202246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395726.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 18202246 is about 4266.4090286797. The cubic root of 18202246 is about 263.0520313234.

The spelling of 18202246 in words is "eighteen million, two hundred two thousand, two hundred forty-six".