1800494080 has 176 divisors, whose sum is σ = 5386000896. Its totient is φ = 561070080.

The previous prime is 1800494071. The next prime is 1800494147. The reversal of 1800494080 is 804940081.

It is a tau number, because it is divible by the number of its divisors (176).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391957 + ... + 396523.

Almost surely, 2^1800494080 is an apocalyptic number.

1800494080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1800494080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2693000448).

1800494080 is an abundant number, since it is smaller than the sum of its proper divisors (3585506816).

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

1800494080 is a wasteful number, since it uses less digits than its factorization.

1800494080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610 (or 4592 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1800494080 is about 42432.2292603158. The cubic root of 1800494080 is about 1216.5516887239.

The spelling of 1800494080 in words is "one billion, eight hundred million, four hundred ninety-four thousand, eighty".