423290 has 16 divisors (see below), whose sum is σ = 870912. Its totient is φ = 145104.

The previous prime is 423289. The next prime is 423299. The reversal of 423290 is 92324.

It is not an unprimeable number, because it can be changed into a prime (423299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954 + ... + 3093.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2⁴²³²⁹⁰ is an apocalyptic number.

423290 is an abundant number, since it is smaller than the sum of its proper divisors (447622).

It is a weird number, because it is abundant, but not a pseudoperfect number.

423290 is a wasteful number, since it uses less digits than its factorization.

423290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 423290 is about 650.6074085038. The cubic root of 423290 is about 75.0837582777.

The spelling of 423290 in words is "four hundred twenty-three thousand, two hundred ninety".