423840068 has 24 divisors (see below), whose sum is σ = 781771200. Its totient is φ = 200505888.

The previous prime is 423840059. The next prime is 423840071. The reversal of 423840068 is 860048324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63473 + ... + 69831.

It is an arithmetic number, because the mean of its divisors is an integer number (32573800).

Almost surely, 2^423840068 is an apocalyptic number.

It is an amenable number.

423840068 is a deficient number, since it is larger than the sum of its proper divisors (357931132).

423840068 is a wasteful number, since it uses less digits than its factorization.

423840068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7259 (or 7257 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 423840068 is about 20587.3764234300. The cubic root of 423840068 is about 751.1626813720.

The spelling of 423840068 in words is "four hundred twenty-three million, eight hundred forty thousand, sixty-eight".