1806204312 has 64 divisors (see below), whose sum is σ = 5473353600. Its totient is φ = 547333920.

The previous prime is 1806204263. The next prime is 1806204343. The reversal of 1806204312 is 2134026081.

1806204312 is a `hidden beast` number, since 1 + 8 + 0 + 620 + 4 + 31 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 377718 + ... + 382469.

It is an arithmetic number, because the mean of its divisors is an integer number (85521150).

Almost surely, 2^1806204312 is an apocalyptic number.

1806204312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1806204312 is an abundant number, since it is smaller than the sum of its proper divisors (3667149288).

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

1806204312 is a wasteful number, since it uses less digits than its factorization.

1806204312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760213 (or 760203 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1806204312 is about 42499.4624907186. The cubic root of 1806204312 is about 1217.8364215276.

The spelling of 1806204312 in words is "one billion, eight hundred six million, two hundred four thousand, three hundred twelve".