423451 has 4 divisors (see below), whose sum is σ = 483952. Its totient is φ = 362952.

The previous prime is 423439. The next prime is 423457. The reversal of 423451 is 154324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423451 - 2⁷ = 423323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423457) by changing a digit.

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, 30240 + ... + 30253.

It is an arithmetic number, because the mean of its divisors is an integer number (120988).

2⁴²³⁴⁵¹ is an apocalyptic number.

423451 is a deficient number, since it is larger than the sum of its proper divisors (60501).

423451 is an equidigital number, since it uses as much as digits as its factorization.

423451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60500.

The product of its digits is 480, while the sum is 19.

The square root of 423451 is about 650.7311272715. The cubic root of 423451 is about 75.0932765377.

Adding to 423451 its reverse (154324), we get a palindrome (577775).

The spelling of 423451 in words is "four hundred twenty-three thousand, four hundred fifty-one".