1805675872 has 144 divisors (see below), whose sum is σ = 4858881552. Its totient is φ = 649313280.

The previous prime is 1805675869. The next prime is 1805675899. The reversal of 1805675872 is 2785765081.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220198 + ... + 228250.

It is an arithmetic number, because the mean of its divisors is an integer number (33742233).

Almost surely, 2^1805675872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1805675872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2429440776).

1805675872 is an abundant number, since it is smaller than the sum of its proper divisors (3053205680).

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

1805675872 is a wasteful number, since it uses less digits than its factorization.

1805675872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8101 (or 8086 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 49.

The square root of 1805675872 is about 42493.2450161199. The cubic root of 1805675872 is about 1217.7176427446.

The spelling of 1805675872 in words is "one billion, eight hundred five million, six hundred seventy-five thousand, eight hundred seventy-two".