423468409 has 32 divisors (see below), whose sum is σ = 551335680. Its totient is φ = 315850752.

The previous prime is 423468389. The next prime is 423468421. The reversal of 423468409 is 904864324.

It is not a de Polignac number, because 423468409 - 2⁹ = 423467897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423468439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443877 + ... + 444829.

It is an arithmetic number, because the mean of its divisors is an integer number (17229240).

Almost surely, 2^423468409 is an apocalyptic number.

It is an amenable number.

423468409 is a deficient number, since it is larger than the sum of its proper divisors (127867271).

423468409 is a wasteful number, since it uses less digits than its factorization.

423468409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 423468409 is about 20578.3480629520. The cubic root of 423468409 is about 750.9430560670.

The spelling of 423468409 in words is "four hundred twenty-three million, four hundred sixty-eight thousand, four hundred nine".