422146 has 4 divisors (see below), whose sum is σ = 633222. Its totient is φ = 211072.

The previous prime is 422141. The next prime is 422183. The reversal of 422146 is 641224.

422146 = T₅₂₉ + T₅₃₀ + T₅₃₁.

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., 354025 + 68121 = 595^2 + 261^2 .

It is not an unprimeable number, because it can be changed into a prime (422141) by changing a digit.

422146 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 105535 + ... + 105538.

2⁴²²¹⁴⁶ is an apocalyptic number.

422146 is the 531-st centered triangular number.

422146 is a deficient number, since it is larger than the sum of its proper divisors (211076).

422146 is a wasteful number, since it uses less digits than its factorization.

422146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211075.

The product of its digits is 384, while the sum is 19.

The square root of 422146 is about 649.7276352442. The cubic root of 422146 is about 75.0160558218.

The spelling of 422146 in words is "four hundred twenty-two thousand, one hundred forty-six".