2171058 has 8 divisors (see below), whose sum is σ = 4342128. Its totient is φ = 723684.

The previous prime is 2171021. The next prime is 2171077. The reversal of 2171058 is 8501712.

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

2171058 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180916 + ... + 180927.

It is an arithmetic number, because the mean of its divisors is an integer number (542766).

2^2171058 is an apocalyptic number.

2171058 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2171058 is a wasteful number, since it uses less digits than its factorization.

2171058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361848.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 2171058 is about 1473.4510511042. The cubic root of 2171058 is about 129.4862962099.

It can be divided in two parts, 217 and 1058, that added together give a triangular number (1275 = T₅₀).

The spelling of 2171058 in words is "two million, one hundred seventy-one thousand, fifty-eight".