1805994960 has 480 divisors, whose sum is σ = 7425810432. Its totient is φ = 358364160.

The previous prime is 1805994941. The next prime is 1805994997. The reversal of 1805994960 is 694995081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2974977 + ... + 2975583.

Almost surely, 2^1805994960 is an apocalyptic number.

1805994960 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 1805994960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3712905216).

1805994960 is an abundant number, since it is smaller than the sum of its proper divisors (5619815472).

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

1805994960 is a wasteful number, since it uses less digits than its factorization.

1805994960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 51.

The square root of 1805994960 is about 42496.9994234887. Note that the first 3 decimals coincide. The cubic root of 1805994960 is about 1217.7893677253.

The spelling of 1805994960 in words is "one billion, eight hundred five million, nine hundred ninety-four thousand, nine hundred sixty".