441321218 has 16 divisors (see below), whose sum is σ = 713292216. Its totient is φ = 203575680.

The previous prime is 441321203. The next prime is 441321269. The reversal of 441321218 is 812123144.

It can be written as a sum of positive squares in 4 ways, for example, as 296287369 + 145033849 = 17213^2 + 12043^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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 7 ways as a sum of consecutive naturals, for example, 62180 + ... + 68912.

Almost surely, 2^441321218 is an apocalyptic number.

441321218 is a deficient number, since it is larger than the sum of its proper divisors (271970998).

441321218 is a wasteful number, since it uses less digits than its factorization.

441321218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9269.

The product of its digits is 1536, while the sum is 26.

The square root of 441321218 is about 21007.6466554443. The cubic root of 441321218 is about 761.3510237359.

The spelling of 441321218 in words is "four hundred forty-one million, three hundred twenty-one thousand, two hundred eighteen".