2730186 has 40 divisors (see below), whose sum is σ = 6446880. Its totient is φ = 861192.

The previous prime is 2730181. The next prime is 2730191. The reversal of 2730186 is 6810372.

It is an interprime number because it is at equal distance from previous prime (2730181) and next prime (2730191).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2730181) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2635 + ... + 3521.

It is an arithmetic number, because the mean of its divisors is an integer number (161172).

2^2730186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2730186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3223440).

2730186 is an abundant number, since it is smaller than the sum of its proper divisors (3716694).

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

2730186 is a wasteful number, since it uses less digits than its factorization.

2730186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2730186 is about 1652.3274493877. The cubic root of 2730186 is about 139.7646726850.

It can be divided in two parts, 2730 and 186, that added together give a square (2916 = 54²).

The spelling of 2730186 in words is "two million, seven hundred thirty thousand, one hundred eighty-six".