2021258 has 16 divisors (see below), whose sum is σ = 3268320. Its totient is φ = 934416.

The previous prime is 2021251. The next prime is 2021291. The reversal of 2021258 is 8521202.

It is not an unprimeable number, because it can be changed into a prime (2021251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016 + ... + 2252.

It is an arithmetic number, because the mean of its divisors is an integer number (204270).

2^2021258 is an apocalyptic number.

2021258 is a deficient number, since it is larger than the sum of its proper divisors (1247062).

2021258 is a wasteful number, since it uses less digits than its factorization.

2021258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2021258 is about 1421.7095343283. The cubic root of 2021258 is about 126.4369227310.

The spelling of 2021258 in words is "two million, twenty-one thousand, two hundred fifty-eight".