1804334020 has 12 divisors (see below), whose sum is σ = 3789101484. Its totient is φ = 721733600.

The previous prime is 1804334011. The next prime is 1804334029. The reversal of 1804334020 is 204334081.

It is an interprime number because it is at equal distance from previous prime (1804334011) and next prime (1804334029).

It can be written as a sum of positive squares in 2 ways, for example, as 394181316 + 1410152704 = 19854^2 + 37552^2 .

It is not an unprimeable number, because it can be changed into a prime (1804334029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45108331 + ... + 45108370.

It is an arithmetic number, because the mean of its divisors is an integer number (315758457).

Almost surely, 2^1804334020 is an apocalyptic number.

1804334020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1804334020 is an abundant number, since it is smaller than the sum of its proper divisors (1984767464).

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

1804334020 is a wasteful number, since it uses less digits than its factorization.

1804334020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90216710 (or 90216708 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1804334020 is about 42477.4530780743. The cubic root of 1804334020 is about 1217.4159271369.

The spelling of 1804334020 in words is "one billion, eight hundred four million, three hundred thirty-four thousand, twenty".