423342442 has 8 divisors (see below), whose sum is σ = 648524736. Its totient is φ = 207167532.

The previous prime is 423342427. The next prime is 423342443. The reversal of 423342442 is 244243324.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 423342442.

It is not an unprimeable number, because it can be changed into a prime (423342443) 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, 2251728 + ... + 2251915.

It is an arithmetic number, because the mean of its divisors is an integer number (81065592).

Almost surely, 2^423342442 is an apocalyptic number.

423342442 is a deficient number, since it is larger than the sum of its proper divisors (225182294).

423342442 is a wasteful number, since it uses less digits than its factorization.

423342442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503692.

The product of its digits is 18432, while the sum is 28.

The square root of 423342442 is about 20575.2871668903. The cubic root of 423342442 is about 750.8685889419.

Adding to 423342442 its reverse (244243324), we get a palindrome (667585766).

The spelling of 423342442 in words is "four hundred twenty-three million, three hundred forty-two thousand, four hundred forty-two".