423006528 has 112 divisors (see below), whose sum is σ = 1323319680. Its totient is φ = 116680704.

The previous prime is 423006511. The next prime is 423006541. The reversal of 423006528 is 825600324.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×423006528² = 357869045461229568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423006495 and 423006504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33550 + ... + 44402.

Almost surely, 2^423006528 is an apocalyptic number.

423006528 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 423006528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661659840).

423006528 is an abundant number, since it is smaller than the sum of its proper divisors (900313152).

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

423006528 is a wasteful number, since it uses less digits than its factorization.

423006528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10904 (or 10894 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 423006528 is about 20567.1225017016. The cubic root of 423006528 is about 750.6699365130.

It can be divided in two parts, 42300 and 6528, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 423006528 in words is "four hundred twenty-three million, six thousand, five hundred twenty-eight".