422443066 has 4 divisors (see below), whose sum is σ = 633664602. Its totient is φ = 211221532.

The previous prime is 422443061. The next prime is 422443069. The reversal of 422443066 is 660344224.

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., 377486041 + 44957025 = 19429^2 + 6705^2 .

It is a super-2 number, since 2×422443066² = 356916288022960712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422443061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105610765 + ... + 105610768.

Almost surely, 2^422443066 is an apocalyptic number.

422443066 is a deficient number, since it is larger than the sum of its proper divisors (211221536).

422443066 is a wasteful number, since it uses less digits than its factorization.

422443066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211221535.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 422443066 is about 20553.4198127708. The cubic root of 422443066 is about 750.3364807221.

The spelling of 422443066 in words is "four hundred twenty-two million, four hundred forty-three thousand, sixty-six".