2180000471 has 4 divisors (see below), whose sum is σ = 2378182344. Its totient is φ = 1981818600.

The previous prime is 2180000461. The next prime is 2180000477. The reversal of 2180000471 is 1740000812.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2180000471 - 2¹⁴ = 2179984087 is a prime.

It is a super-3 number, since 3×2180000471³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180000477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99090920 + ... + 99090941.

It is an arithmetic number, because the mean of its divisors is an integer number (594545586).

Almost surely, 2^2180000471 is an apocalyptic number.

2180000471 is a deficient number, since it is larger than the sum of its proper divisors (198181873).

2180000471 is a wasteful number, since it uses less digits than its factorization.

2180000471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198181872.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 2180000471 is about 46690.4751635706. The cubic root of 2180000471 is about 1296.6383503559.

The spelling of 2180000471 in words is "two billion, one hundred eighty million, four hundred seventy-one", and thus it is an aban number.