2785873000 has 32 divisors (see below), whose sum is σ = 6518945160. Its totient is φ = 1114348800.

The previous prime is 2785872983. The next prime is 2785873003. The reversal of 2785873000 is 3785872.

It can be written as a sum of positive squares in 4 ways, for example, as 376437604 + 2409435396 = 19402^2 + 49086^2 .

It is a super-2 number, since 2×2785873000² = 15522176744258000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2785873003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391937 + ... + 1393936.

Almost surely, 2^2785873000 is an apocalyptic number.

2785873000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2785873000 is an abundant number, since it is smaller than the sum of its proper divisors (3733072160).

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

2785873000 is a wasteful number, since it uses less digits than its factorization.

2785873000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785894 (or 2785880 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 2785873000 is about 52781.3698192838. The cubic root of 2785873000 is about 1407.0853394143.

The spelling of 2785873000 in words is "two billion, seven hundred eighty-five million, eight hundred seventy-three thousand".