422840066 has 16 divisors (see below), whose sum is σ = 697642848. Its totient is φ = 192198820.

The previous prime is 422840063. The next prime is 422840069. The reversal of 422840066 is 660048224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (422840063) and next prime (422840069).

It is not an unprimeable number, because it can be changed into a prime (422840063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76760 + ... + 82083.

It is an arithmetic number, because the mean of its divisors is an integer number (43602678).

Almost surely, 2^422840066 is an apocalyptic number.

422840066 is a deficient number, since it is larger than the sum of its proper divisors (274802782).

422840066 is a wasteful number, since it uses less digits than its factorization.

422840066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158878 (or 158856 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 422840066 is about 20563.0753050219. The cubic root of 422840066 is about 750.5714554373.

The spelling of 422840066 in words is "four hundred twenty-two million, eight hundred forty thousand, sixty-six".