10398218 has 4 divisors (see below), whose sum is σ = 15597330. Its totient is φ = 5199108.

The previous prime is 10398209. The next prime is 10398239. The reversal of 10398218 is 81289301.

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., 9653449 + 744769 = 3107^2 + 863^2 .

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 as a sum of consecutive naturals, namely, 2599553 + ... + 2599556.

Almost surely, 2^10398218 is an apocalyptic number.

10398218 is a deficient number, since it is larger than the sum of its proper divisors (5199112).

10398218 is an equidigital number, since it uses as much as digits as its factorization.

10398218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199111.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 10398218 is about 3224.6268001119. The cubic root of 10398218 is about 218.2661088352.

The spelling of 10398218 in words is "ten million, three hundred ninety-eight thousand, two hundred eighteen".