423528 has 32 divisors (see below), whose sum is σ = 1210560. Its totient is φ = 120960.

The previous prime is 423509. The next prime is 423541. The reversal of 423528 is 825324.

423528 is nontrivially palindromic in base 13.

It is a super-3 number, since 3×423528³ = 227912233380281856, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 4 + 2⁶ + 5⁸ + 3 + 2¹⁵ + 8² .

It is a zygodrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 423498 and 423507.

It is an unprimeable number.

423528 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093 + ... + 1428.

It is an arithmetic number, because the mean of its divisors is an integer number (37830).

2⁴²³⁵²⁸ is an apocalyptic number.

It is an amenable number.

423528 is an abundant number, since it is smaller than the sum of its proper divisors (787032).

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

423528 is a wasteful number, since it uses less digits than its factorization.

423528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537 (or 2533 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 423528 is about 650.7902888028. The cubic root of 423528 is about 75.0978278961.

It can be divided in two parts, 42 and 3528, that added together give a triangular number (3570 = T₈₄).

The spelling of 423528 in words is "four hundred twenty-three thousand, five hundred twenty-eight".