423324720 has 540 divisors, whose sum is σ = 1815995376. Its totient is φ = 88058880.

The previous prime is 423324719. The next prime is 423324721. The reversal of 423324720 is 27423324.

It is an interprime number because it is at equal distance from previous prime (423324719) and next prime (423324721).

It is not an unprimeable number, because it can be changed into a prime (423324721) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 5962285 + ... + 5962355.

Almost surely, 2^423324720 is an apocalyptic number.

423324720 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 423324720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907997688).

423324720 is an abundant number, since it is smaller than the sum of its proper divisors (1392670656).

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

423324720 is a wasteful number, since it uses less digits than its factorization.

423324720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 423324720 is about 20574.8565001071. The cubic root of 423324720 is about 750.8581111526.

The spelling of 423324720 in words is "four hundred twenty-three million, three hundred twenty-four thousand, seven hundred twenty".