442022066 has 16 divisors (see below), whose sum is σ = 719160120. Its totient is φ = 202936320.

The previous prime is 442022051. The next prime is 442022071. The reversal of 442022066 is 660220244.

It can be written as a sum of positive squares in 4 ways, for example, as 202236841 + 239785225 = 14221^2 + 15485^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157151 + ... + 159938.

Almost surely, 2^442022066 is an apocalyptic number.

442022066 is a deficient number, since it is larger than the sum of its proper divisors (277138054).

442022066 is a wasteful number, since it uses less digits than its factorization.

442022066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317149.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 442022066 is about 21024.3208213726. The cubic root of 442022066 is about 761.7538362526.

The spelling of 442022066 in words is "four hundred forty-two million, twenty-two thousand, sixty-six".