2167442 has 4 divisors (see below), whose sum is σ = 3251166. Its totient is φ = 1083720.

The previous prime is 2167441. The next prime is 2167447. The reversal of 2167442 is 2447612.

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

It can be written as a sum of positive squares in only one way, i.e., 2070721 + 96721 = 1439^2 + 311^2 .

It is a d-powerful number, because it can be written as 2⁵ + 1 + 6⁴ + 7⁴ + 4⁵ + 4⁸ + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (2167441) by changing a digit.

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 as a sum of consecutive naturals, namely, 541859 + ... + 541862.

2^2167442 is an apocalyptic number.

2167442 is a deficient number, since it is larger than the sum of its proper divisors (1083724).

2167442 is a wasteful number, since it uses less digits than its factorization.

2167442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083723.

The product of its digits is 2688, while the sum is 26.

The square root of 2167442 is about 1472.2234884691. The cubic root of 2167442 is about 129.4143677405.

The spelling of 2167442 in words is "two million, one hundred sixty-seven thousand, four hundred forty-two".