441983618 has 4 divisors (see below), whose sum is σ = 662975430. Its totient is φ = 220991808.

The previous prime is 441983603. The next prime is 441983653. The reversal of 441983618 is 816389144.

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., 433763929 + 8219689 = 20827^2 + 2867^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110495903 + ... + 110495906.

Almost surely, 2^441983618 is an apocalyptic number.

441983618 is a deficient number, since it is larger than the sum of its proper divisors (220991812).

441983618 is a wasteful number, since it uses less digits than its factorization.

441983618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220991811.

The product of its digits is 165888, while the sum is 44.

The square root of 441983618 is about 21023.4064318797. The cubic root of 441983618 is about 761.7317493004.

The spelling of 441983618 in words is "four hundred forty-one million, nine hundred eighty-three thousand, six hundred eighteen".