423420066 has 12 divisors (see below), whose sum is σ = 917410182. Its totient is φ = 141140016.

The previous prime is 423420059. The next prime is 423420089. The reversal of 423420066 is 660024324.

It can be written as a sum of positive squares in only one way, i.e., 336539025 + 86881041 = 18345^2 + 9321^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 11761651 + ... + 11761686.

Almost surely, 2^423420066 is an apocalyptic number.

423420066 is an abundant number, since it is smaller than the sum of its proper divisors (493990116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423420066 is a wasteful number, since it uses less digits than its factorization.

423420066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23523345 (or 23523342 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 423420066 is about 20577.1734210508. The cubic root of 423420066 is about 750.9144791839.

The spelling of 423420066 in words is "four hundred twenty-three million, four hundred twenty thousand, sixty-six".