423550 has 24 divisors (see below), whose sum is σ = 810216. Its totient is φ = 164640.

The previous prime is 423547. The next prime is 423557. The reversal of 423550 is 55324.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2052 + ... + 2248.

It is an arithmetic number, because the mean of its divisors is an integer number (33759).

2⁴²³⁵⁵⁰ is an apocalyptic number.

423550 is a deficient number, since it is larger than the sum of its proper divisors (386666).

423550 is a wasteful number, since it uses less digits than its factorization.

423550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 423550 is about 650.8071911096. The cubic root of 423550 is about 75.0991281829.

Adding to 423550 its reverse (55324), we get a palindrome (478874).

The spelling of 423550 in words is "four hundred twenty-three thousand, five hundred fifty".