423966528 has 112 divisors (see below), whose sum is σ = 1258580160. Its totient is φ = 139940352.

The previous prime is 423966523. The next prime is 423966539. The reversal of 423966528 is 825669324.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423966523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183750 + ... + 186042.

Almost surely, 2^423966528 is an apocalyptic number.

423966528 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 423966528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629290080).

423966528 is an abundant number, since it is smaller than the sum of its proper divisors (834613632).

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

423966528 is a wasteful number, since it uses less digits than its factorization.

423966528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421 (or 2405 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 423966528 is about 20590.4474939230. The cubic root of 423966528 is about 751.2373813937.

The spelling of 423966528 in words is "four hundred twenty-three million, nine hundred sixty-six thousand, five hundred twenty-eight".