2018444 has 12 divisors (see below), whose sum is σ = 3740184. Its totient is φ = 949824.

The previous prime is 2018437. The next prime is 2018447. The reversal of 2018444 is 4448102.

It is a super-2 number, since 2×2018444² = 8148232362272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2018447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14774 + ... + 14909.

It is an arithmetic number, because the mean of its divisors is an integer number (311682).

2^2018444 is an apocalyptic number.

It is an amenable number.

2018444 is a deficient number, since it is larger than the sum of its proper divisors (1721740).

2018444 is a wasteful number, since it uses less digits than its factorization.

2018444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29704 (or 29702 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 2018444 is about 1420.7195360098. The cubic root of 2018444 is about 126.3782202232.

The spelling of 2018444 in words is "two million, eighteen thousand, four hundred forty-four".