423864320 has 192 divisors, whose sum is σ = 1146337920. Its totient is φ = 149094400.

The previous prime is 423864313. The next prime is 423864347. The reversal of 423864320 is 23468324.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5969885 + ... + 5969955.

It is an arithmetic number, because the mean of its divisors is an integer number (5970510).

Almost surely, 2^423864320 is an apocalyptic number.

423864320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423864320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573168960).

423864320 is an abundant number, since it is smaller than the sum of its proper divisors (722473600).

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

423864320 is a wasteful number, since it uses less digits than its factorization.

423864320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 423864320 is about 20587.9654167186. The cubic root of 423864320 is about 751.1770081990.

The spelling of 423864320 in words is "four hundred twenty-three million, eight hundred sixty-four thousand, three hundred twenty".