423526 has 8 divisors (see below), whose sum is σ = 638064. Its totient is φ = 210840.

The previous prime is 423509. The next prime is 423541. The reversal of 423526 is 625324.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 4² + 2¹⁴ + 5⁸ + 3⁴ + 2¹⁴ + 6² .

It is a junction number, because it is equal to n+sod(n) for n = 423497 and 423506.

It is a congruent number.

It is an unprimeable number.

423526 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 591 + ... + 1093.

It is an arithmetic number, because the mean of its divisors is an integer number (79758).

2⁴²³⁵²⁶ is an apocalyptic number.

423526 is a deficient number, since it is larger than the sum of its proper divisors (214538).

423526 is a wasteful number, since it uses less digits than its factorization.

423526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its digits is 1440, while the sum is 22.

The square root of 423526 is about 650.7887522077. The cubic root of 423526 is about 75.0977096860.

It can be divided in two parts, 423 and 526, that added together give a palindrome (949).

The spelling of 423526 in words is "four hundred twenty-three thousand, five hundred twenty-six".