423678528 has 336 divisors, whose sum is σ = 1531071360. Its totient is φ = 109043712.

The previous prime is 423678523. The next prime is 423678547. The reversal of 423678528 is 825876324.

It is a tau number, because it is divible by the number of its divisors (336).

It is not an unprimeable number, because it can be changed into a prime (423678523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3092476 + ... + 3092612.

It is an arithmetic number, because the mean of its divisors is an integer number (4556760).

Almost surely, 2^423678528 is an apocalyptic number.

423678528 is a gapful number since it is divisible by the number (48) 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 423678528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765535680).

423678528 is an abundant number, since it is smaller than the sum of its proper divisors (1107392832).

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

423678528 is a wasteful number, since it uses less digits than its factorization.

423678528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 221 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 423678528 is about 20583.4527715833. The cubic root of 423678528 is about 751.0672379505.

The spelling of 423678528 in words is "four hundred twenty-three million, six hundred seventy-eight thousand, five hundred twenty-eight".