423464220 has 192 divisors, whose sum is σ = 1408458240. Its totient is φ = 105255936.

The previous prime is 423464213. The next prime is 423464221. The reversal of 423464220 is 22464324.

423464220 is a `hidden beast` number, since 4 + 234 + 6 + 422 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423464221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1496199 + ... + 1496481.

It is an arithmetic number, because the mean of its divisors is an integer number (7335720).

Almost surely, 2^423464220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423464220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704229120).

423464220 is an abundant number, since it is smaller than the sum of its proper divisors (984994020).

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

423464220 is a wasteful number, since it uses less digits than its factorization.

423464220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 423464220 is about 20578.2462809638. The cubic root of 423464220 is about 750.9405799194.

The spelling of 423464220 in words is "four hundred twenty-three million, four hundred sixty-four thousand, two hundred twenty".