423508668 has 24 divisors (see below), whose sum is σ = 1078022400. Its totient is φ = 128335920.

The previous prime is 423508661. The next prime is 423508741. The reversal of 423508668 is 866805324.

It is a super-2 number, since 2×423508668² = 358719183742268448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423508661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604068 + ... + 1604331.

It is an arithmetic number, because the mean of its divisors is an integer number (44917600).

Almost surely, 2^423508668 is an apocalyptic number.

It is an amenable number.

423508668 is an abundant number, since it is smaller than the sum of its proper divisors (654513732).

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

423508668 is a wasteful number, since it uses less digits than its factorization.

423508668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208417 (or 3208415 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 423508668 is about 20579.3262280377. The cubic root of 423508668 is about 750.9668526147.

The spelling of 423508668 in words is "four hundred twenty-three million, five hundred eight thousand, six hundred sixty-eight".