442613918 has 16 divisors (see below), whose sum is σ = 680952096. Its totient is φ = 215685600.

The previous prime is 442613917. The next prime is 442613957. The reversal of 442613918 is 819316244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442613917) 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 7 ways as a sum of consecutive naturals, for example, 2180 + ... + 29832.

It is an arithmetic number, because the mean of its divisors is an integer number (42559506).

Almost surely, 2^442613918 is an apocalyptic number.

442613918 is a deficient number, since it is larger than the sum of its proper divisors (238338178).

442613918 is a wasteful number, since it uses less digits than its factorization.

442613918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27859.

The product of its digits is 41472, while the sum is 38.

The square root of 442613918 is about 21038.3915259699. The cubic root of 442613918 is about 762.0936718201.

The spelling of 442613918 in words is "four hundred forty-two million, six hundred thirteen thousand, nine hundred eighteen".