4022146 has 4 divisors (see below), whose sum is σ = 6033222. Its totient is φ = 2011072.

The previous prime is 4022143. The next prime is 4022147. The reversal of 4022146 is 6412204.

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., 3783025 + 239121 = 1945^2 + 489^2 .

It is not an unprimeable number, because it can be changed into a prime (4022143) 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 as a sum of consecutive naturals, namely, 1005535 + ... + 1005538.

Almost surely, 2^4022146 is an apocalyptic number.

4022146 is a deficient number, since it is larger than the sum of its proper divisors (2011076).

4022146 is a wasteful number, since it uses less digits than its factorization.

4022146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011075.

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

The square root of 4022146 is about 2005.5288579325. The cubic root of 4022146 is about 159.0325210696.

The spelling of 4022146 in words is "four million, twenty-two thousand, one hundred forty-six".