403423430 has 16 divisors (see below), whose sum is σ = 768877920. Its totient is φ = 151876992.

The previous prime is 403423421. The next prime is 403423441. The reversal of 403423430 is 34324304.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 403423396 and 403423405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1186370 + ... + 1186709.

It is an arithmetic number, because the mean of its divisors is an integer number (48054870).

Almost surely, 2^403423430 is an apocalyptic number.

403423430 is a deficient number, since it is larger than the sum of its proper divisors (365454490).

403423430 is a wasteful number, since it uses less digits than its factorization.

403423430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373103.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 403423430 is about 20085.4034064542. The cubic root of 403423430 is about 738.9023353520.

Adding to 403423430 its reverse (34324304), we get a palindrome (437747734).

The spelling of 403423430 in words is "four hundred three million, four hundred twenty-three thousand, four hundred thirty".