1845981360 has 80 divisors (see below), whose sum is σ = 6358387680. Its totient is φ = 492261120.

The previous prime is 1845981349. The next prime is 1845981383. The reversal of 1845981360 is 631895481.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 425151 + ... + 429470.

It is an arithmetic number, because the mean of its divisors is an integer number (79479846).

Almost surely, 2^1845981360 is an apocalyptic number.

1845981360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1845981360 is an abundant number, since it is smaller than the sum of its proper divisors (4512406320).

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

1845981360 is a wasteful number, since it uses less digits than its factorization.

1845981360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854643 (or 854631 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1845981360 is about 42964.8851971002. The cubic root of 1845981360 is about 1226.7115013281.

The spelling of 1845981360 in words is "one billion, eight hundred forty-five million, nine hundred eighty-one thousand, three hundred sixty".