423421342 has 8 divisors (see below), whose sum is σ = 635384736. Its totient is φ = 211626432.

The previous prime is 423421337. The next prime is 423421357. The reversal of 423421342 is 243124324.

It is a happy number.

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

It is a super-2 number, since 2×423421342² = 358571265722161928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35638 + ... + 46009.

It is an arithmetic number, because the mean of its divisors is an integer number (79423092).

Almost surely, 2^423421342 is an apocalyptic number.

423421342 is a deficient number, since it is larger than the sum of its proper divisors (211963394).

423421342 is a wasteful number, since it uses less digits than its factorization.

423421342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84242.

The product of its digits is 4608, while the sum is 25.

The square root of 423421342 is about 20577.2044262577. The cubic root of 423421342 is about 750.9152334907.

Adding to 423421342 its reverse (243124324), we get a palindrome (666545666).

The spelling of 423421342 in words is "four hundred twenty-three million, four hundred twenty-one thousand, three hundred forty-two".