2186238036 has 24 divisors (see below), whose sum is σ = 5150751424. Its totient is φ = 721670400.

The previous prime is 2186238001. The next prime is 2186238037. The reversal of 2186238036 is 6308326812.

It is a junction number, because it is equal to n+sod(n) for n = 2186237985 and 2186238003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2186238037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883165 + ... + 885636.

Almost surely, 2^2186238036 is an apocalyptic number.

It is an amenable number.

2186238036 is an abundant number, since it is smaller than the sum of its proper divisors (2964513388).

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

2186238036 is a wasteful number, since it uses less digits than its factorization.

2186238036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768911 (or 1768909 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 2186238036 is about 46757.2244257505. The cubic root of 2186238036 is about 1297.8738492297.

The spelling of 2186238036 in words is "two billion, one hundred eighty-six million, two hundred thirty-eight thousand, thirty-six".