423258720 has 96 divisors (see below), whose sum is σ = 1336124160. Its totient is φ = 112627200.

The previous prime is 423258701. The next prime is 423258721. The reversal of 423258720 is 27852324.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423258721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402195 + ... + 403245.

It is an arithmetic number, because the mean of its divisors is an integer number (13917960).

Almost surely, 2^423258720 is an apocalyptic number.

423258720 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 423258720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668062080).

423258720 is an abundant number, since it is smaller than the sum of its proper divisors (912865440).

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

423258720 is a wasteful number, since it uses less digits than its factorization.

423258720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 423258720 is about 20573.2525381866. The cubic root of 423258720 is about 750.8190873578.

The spelling of 423258720 in words is "four hundred twenty-three million, two hundred fifty-eight thousand, seven hundred twenty".