423128208 has 40 divisors (see below), whose sum is σ = 1111008256. Its totient is φ = 138729600.

The previous prime is 423128201. The next prime is 423128219. The reversal of 423128208 is 802821324.

It is not an unprimeable number, because it can be changed into a prime (423128201) 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, 69328 + ... + 75183.

Almost surely, 2^423128208 is an apocalyptic number.

423128208 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

423128208 is an abundant number, since it is smaller than the sum of its proper divisors (687880048).

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

423128208 is a wasteful number, since it uses less digits than its factorization.

423128208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144583 (or 144577 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 423128208 is about 20570.0804082045. The cubic root of 423128208 is about 750.7419076332.

The spelling of 423128208 in words is "four hundred twenty-three million, one hundred twenty-eight thousand, two hundred eight".