2186406634 has 8 divisors (see below), whose sum is σ = 3422201760. Its totient is φ = 1045672716.

The previous prime is 2186406617. The next prime is 2186406641. The reversal of 2186406634 is 4366046812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23765244 + ... + 23765335.

It is an arithmetic number, because the mean of its divisors is an integer number (427775220).

Almost surely, 2^2186406634 is an apocalyptic number.

2186406634 is a deficient number, since it is larger than the sum of its proper divisors (1235795126).

2186406634 is a wasteful number, since it uses less digits than its factorization.

2186406634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47530604.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 2186406634 is about 46759.0272995493. The cubic root of 2186406634 is about 1297.9072114570.

The spelling of 2186406634 in words is "two billion, one hundred eighty-six million, four hundred six thousand, six hundred thirty-four".