2186012340 has 48 divisors (see below), whose sum is σ = 6800928960. Its totient is φ = 582936480.

The previous prime is 2186012333. The next prime is 2186012357. The reversal of 2186012340 is 432106812.

2186012340 is a `hidden beast` number, since 2 + 18 + 601 + 2 + 3 + 40 = 666.

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

It is a congruent number.

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, 2023546 + ... + 2024625.

It is an arithmetic number, because the mean of its divisors is an integer number (141686020).

Almost surely, 2^2186012340 is an apocalyptic number.

2186012340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2186012340 is an abundant number, since it is smaller than the sum of its proper divisors (4614916620).

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

2186012340 is a wasteful number, since it uses less digits than its factorization.

2186012340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048189 (or 4048181 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2186012340 is about 46754.8108754597. The cubic root of 2186012340 is about 1297.8291857466.

The spelling of 2186012340 in words is "two billion, one hundred eighty-six million, twelve thousand, three hundred forty".