423255220 has 24 divisors (see below), whose sum is σ = 889222824. Its totient is φ = 169228416.

The previous prime is 423255199. The next prime is 423255221. The reversal of 423255220 is 22552324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 77369616 + 345885604 = 8796^2 + 18598^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423255221) 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, 85534 + ... + 90346.

It is an arithmetic number, because the mean of its divisors is an integer number (37050951).

Almost surely, 2^423255220 is an apocalyptic number.

It is an amenable number.

423255220 is an abundant number, since it is smaller than the sum of its proper divisors (465967604).

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

423255220 is a wasteful number, since it uses less digits than its factorization.

423255220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9219 (or 9217 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 423255220 is about 20573.1674761083. The cubic root of 423255220 is about 750.8170178008.

The spelling of 423255220 in words is "four hundred twenty-three million, two hundred fifty-five thousand, two hundred twenty".