403432423 has 8 divisors (see below), whose sum is σ = 438709392. Its totient is φ = 369438336.

The previous prime is 403432411. The next prime is 403432451. The reversal of 403432423 is 324234304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-403432423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403432123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320065 + ... + 321322.

It is an arithmetic number, because the mean of its divisors is an integer number (54838674).

Almost surely, 2^403432423 is an apocalyptic number.

403432423 is a deficient number, since it is larger than the sum of its proper divisors (35276969).

403432423 is a wasteful number, since it uses less digits than its factorization.

403432423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641441.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 403432423 is about 20085.6272742476. The cubic root of 403432423 is about 738.9078257779.

Adding to 403432423 its reverse (324234304), we get a palindrome (727666727).

The spelling of 403432423 in words is "four hundred three million, four hundred thirty-two thousand, four hundred twenty-three".