2018671444 has 12 divisors (see below), whose sum is σ = 3534458004. Its totient is φ = 1008826304.

The previous prime is 2018671427. The next prime is 2018671453. The reversal of 2018671444 is 4441768102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 486731844 + 1531939600 = 22062^2 + 39140^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118369 + ... + 134344.

It is an arithmetic number, because the mean of its divisors is an integer number (294538167).

Almost surely, 2^2018671444 is an apocalyptic number.

It is an amenable number.

2018671444 is a deficient number, since it is larger than the sum of its proper divisors (1515786560).

2018671444 is a wasteful number, since it uses less digits than its factorization.

2018671444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254714 (or 254712 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 2018671444 is about 44929.6276859713. The cubic root of 2018671444 is about 1263.8296693049.

The spelling of 2018671444 in words is "two billion, eighteen million, six hundred seventy-one thousand, four hundred forty-four".