423490 has 8 divisors (see below), whose sum is σ = 762300. Its totient is φ = 169392.

The previous prime is 423481. The next prime is 423497. The reversal of 423490 is 94324.

It can be written as a sum of positive squares in 2 ways, for example, as 400689 + 22801 = 633^2 + 151^2 .

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

It is not an unprimeable number, because it can be changed into a prime (423497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21165 + ... + 21184.

2⁴²³⁴⁹⁰ is an apocalyptic number.

423490 is a deficient number, since it is larger than the sum of its proper divisors (338810).

423490 is a wasteful number, since it uses less digits than its factorization.

423490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42356.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 423490 is about 650.7610928751. The cubic root of 423490 is about 75.0955818401.

The spelling of 423490 in words is "four hundred twenty-three thousand, four hundred ninety".