423401432 has 16 divisors (see below), whose sum is σ = 799939800. Its totient is φ = 210084160.

The previous prime is 423401423. The next prime is 423401437. The reversal of 423401432 is 234104324.

It is a junction number, because it is equal to n+sod(n) for n = 423401398 and 423401407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423401437) 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, 200957 + ... + 203052.

Almost surely, 2^423401432 is an apocalyptic number.

It is an amenable number.

423401432 is a deficient number, since it is larger than the sum of its proper divisors (376538368).

423401432 is a wasteful number, since it uses less digits than its factorization.

423401432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404146 (or 404142 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 423401432 is about 20576.7206327928. The cubic root of 423401432 is about 750.9034635308.

Adding to 423401432 its reverse (234104324), we get a palindrome (657505756).

The spelling of 423401432 in words is "four hundred twenty-three million, four hundred one thousand, four hundred thirty-two".