1800063380 has 54 divisors (see below), whose sum is σ = 3874446366. Its totient is φ = 702493376.

The previous prime is 1800063367. The next prime is 1800063403. The reversal of 1800063380 is 833600081.

It can be written as a sum of positive squares in 3 ways, for example, as 492662416 + 1307400964 = 22196^2 + 36158^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10056131 + ... + 10056309.

Almost surely, 2^1800063380 is an apocalyptic number.

1800063380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1800063380 is an abundant number, since it is smaller than the sum of its proper divisors (2074382986).

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

1800063380 is an equidigital number, since it uses as much as digits as its factorization.

1800063380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1800063380 is about 42427.1538050810. The cubic root of 1800063380 is about 1216.4546763531.

The spelling of 1800063380 in words is "one billion, eight hundred million, sixty-three thousand, three hundred eighty".