2120858 has 8 divisors (see below), whose sum is σ = 3188352. Its totient is φ = 1058076.

The previous prime is 2120851. The next prime is 2120863. The reversal of 2120858 is 8580212.

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

It is not an unprimeable number, because it can be changed into a prime (2120851) 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, 341 + ... + 2087.

It is an arithmetic number, because the mean of its divisors is an integer number (398544).

2^2120858 is an apocalyptic number.

2120858 is a deficient number, since it is larger than the sum of its proper divisors (1067494).

2120858 is a wasteful number, since it uses less digits than its factorization.

2120858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2120858 is about 1456.3165864605. The cubic root of 2120858 is about 128.4804938420.

The spelling of 2120858 in words is "two million, one hundred twenty thousand, eight hundred fifty-eight".