2166842230 has 24 divisors (see below), whose sum is σ = 4537103328. Its totient is φ = 742917168.

The previous prime is 2166842221. The next prime is 2166842231. The reversal of 2166842230 is 322486612.

It is a super-2 number, since 2×2166842230² = 9390410499422745800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166842231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2210574 + ... + 2211553.

It is an arithmetic number, because the mean of its divisors is an integer number (189045972).

Almost surely, 2^2166842230 is an apocalyptic number.

2166842230 is an abundant number, since it is smaller than the sum of its proper divisors (2370261098).

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

2166842230 is a wasteful number, since it uses less digits than its factorization.

2166842230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422148 (or 4422141 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 2166842230 is about 46549.3526270774. The cubic root of 2166842230 is about 1294.0242954859.

The spelling of 2166842230 in words is "two billion, one hundred sixty-six million, eight hundred forty-two thousand, two hundred thirty".