1814442020 has 12 divisors (see below), whose sum is σ = 3810328284. Its totient is φ = 725776800.

The previous prime is 1814441999. The next prime is 1814442067. The reversal of 1814442020 is 202444181.

It can be written as a sum of positive squares in 2 ways, for example, as 1175666944 + 638775076 = 34288^2 + 25274^2 .

It is an unprimeable number.

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, 45361031 + ... + 45361070.

It is an arithmetic number, because the mean of its divisors is an integer number (317527357).

Almost surely, 2^1814442020 is an apocalyptic number.

1814442020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1814442020 is an abundant number, since it is smaller than the sum of its proper divisors (1995886264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1814442020 is a wasteful number, since it uses less digits than its factorization.

1814442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90722110 (or 90722108 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 1814442020 is about 42596.2676768752. The cubic root of 1814442020 is about 1219.6850436640.

The spelling of 1814442020 in words is "one billion, eight hundred fourteen million, four hundred forty-two thousand, twenty".