423401434 has 32 divisors (see below), whose sum is σ = 716503680. Its totient is φ = 186639552.

The previous prime is 423401423. The next prime is 423401437. The reversal of 423401434 is 434104324.

It is a junction number, because it is equal to n+sod(n) for n = 423401399 and 423401408.

It is not an unprimeable number, because it can be changed into a prime (423401437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25792 + ... + 38884.

It is an arithmetic number, because the mean of its divisors is an integer number (22390740).

Almost surely, 2^423401434 is an apocalyptic number.

423401434 is a deficient number, since it is larger than the sum of its proper divisors (293102246).

423401434 is a wasteful number, since it uses less digits than its factorization.

423401434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13174.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 423401434 is about 20576.7206813914. The cubic root of 423401434 is about 750.9034647132.

Adding to 423401434 its reverse (434104324), we get a palindrome (857505758).

The spelling of 423401434 in words is "four hundred twenty-three million, four hundred one thousand, four hundred thirty-four".