423240434 has 8 divisors (see below), whose sum is σ = 662463360. Its totient is φ = 202419316.

The previous prime is 423240431. The next prime is 423240439. The reversal of 423240434 is 434042324.

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 (423240431) 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, 4600394 + ... + 4600485.

It is an arithmetic number, because the mean of its divisors is an integer number (82807920).

Almost surely, 2^423240434 is an apocalyptic number.

423240434 is a deficient number, since it is larger than the sum of its proper divisors (239222926).

423240434 is a wasteful number, since it uses less digits than its factorization.

423240434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9200904.

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 423240434 is about 20572.8081214014. The cubic root of 423240434 is about 750.8082746839.

Adding to 423240434 its reverse (434042324), we get a palindrome (857282758).

The spelling of 423240434 in words is "four hundred twenty-three million, two hundred forty thousand, four hundred thirty-four".