423240001 has 4 divisors (see below), whose sum is σ = 423284400. Its totient is φ = 423195604.

The previous prime is 423239983. The next prime is 423240049. The reversal of 423240001 is 100042324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 423240001 - 2⁵ = 423239969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423240061) 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, 1411 + ... + 29128.

It is an arithmetic number, because the mean of its divisors is an integer number (105821100).

Almost surely, 2^423240001 is an apocalyptic number.

It is an amenable number.

423240001 is a deficient number, since it is larger than the sum of its proper divisors (44399).

423240001 is a wasteful number, since it uses less digits than its factorization.

423240001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44398.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 423240001 is about 20572.7975977989. The cubic root of 423240001 is about 750.8080186434.

Adding to 423240001 its reverse (100042324), we get a palindrome (523282325).

The spelling of 423240001 in words is "four hundred twenty-three million, two hundred forty thousand, one".