423402332 has 12 divisors (see below), whose sum is σ = 742676256. Its totient is φ = 211209120.

The previous prime is 423402313. The next prime is 423402337. The reversal of 423402332 is 233204324.

It is a junction number, because it is equal to n+sod(n) for n = 423402298 and 423402307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423402337) 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, 121073 + ... + 124520.

It is an arithmetic number, because the mean of its divisors is an integer number (61889688).

Almost surely, 2^423402332 is an apocalyptic number.

It is an amenable number.

423402332 is a deficient number, since it is larger than the sum of its proper divisors (319273924).

423402332 is a wasteful number, since it uses less digits than its factorization.

423402332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246028 (or 246026 counting only the distinct ones).

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

The square root of 423402332 is about 20576.7425021552. The cubic root of 423402332 is about 750.9039955812.

Adding to 423402332 its reverse (233204324), we get a palindrome (656606656).

The spelling of 423402332 in words is "four hundred twenty-three million, four hundred two thousand, three hundred thirty-two".