2001258 has 36 divisors (see below), whose sum is σ = 5046210. Its totient is φ = 571536.

The previous prime is 2001247. The next prime is 2001269. The reversal of 2001258 is 8521002.

It is an interprime number because it is at equal distance from previous prime (2001247) and next prime (2001269).

It can be written as a sum of positive squares in only one way, i.e., 1979649 + 21609 = 1407^2 + 147^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2001258.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 253 + ... + 2016.

2^2001258 is an apocalyptic number.

2001258 is an abundant number, since it is smaller than the sum of its proper divisors (3044952).

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

2001258 is a wasteful number, since it uses less digits than its factorization.

2001258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291 (or 2281 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2001258 is about 1414.6582626203. The cubic root of 2001258 is about 126.0185157975.

The spelling of 2001258 in words is "two million, one thousand, two hundred fifty-eight".