2018449123 has 8 divisors (see below), whose sum is σ = 2076172560. Its totient is φ = 1960892640.

The previous prime is 2018449093. The next prime is 2018449127. The reversal of 2018449123 is 3219448102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2018449123 - 2⁹ = 2018448611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2018449127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17008 + ... + 65773.

It is an arithmetic number, because the mean of its divisors is an integer number (259521570).

Almost surely, 2^2018449123 is an apocalyptic number.

2018449123 is a deficient number, since it is larger than the sum of its proper divisors (57723437).

2018449123 is an equidigital number, since it uses as much as digits as its factorization.

2018449123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83477.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 2018449123 is about 44927.1535154410. The cubic root of 2018449123 is about 1263.7832714307.

The spelling of 2018449123 in words is "two billion, eighteen million, four hundred forty-nine thousand, one hundred twenty-three".