2186838401 has 32 divisors (see below), whose sum is σ = 2594820096. Its totient is φ = 1820448000.

The previous prime is 2186838397. The next prime is 2186838427. The reversal of 2186838401 is 1048386812.

It is not a de Polignac number, because 2186838401 - 2² = 2186838397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2186868401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3465356 + ... + 3465986.

It is an arithmetic number, because the mean of its divisors is an integer number (81088128).

Almost surely, 2^2186838401 is an apocalyptic number.

It is an amenable number.

2186838401 is a deficient number, since it is larger than the sum of its proper divisors (407981695).

2186838401 is a wasteful number, since it uses less digits than its factorization.

2186838401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 2186838401 is about 46763.6440089949. The cubic root of 2186838401 is about 1297.9926418324.

The spelling of 2186838401 in words is "two billion, one hundred eighty-six million, eight hundred thirty-eight thousand, four hundred one".