342420023 has 16 divisors (see below), whose sum is σ = 392787360. Its totient is φ = 295612800.

The previous prime is 342419989. The next prime is 342420031. The reversal of 342420023 is 320024243.

It is a cyclic number.

It is not a de Polignac number, because 342420023 - 2¹⁶ = 342354487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342419977 and 342420004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342420083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10661 + ... + 28257.

It is an arithmetic number, because the mean of its divisors is an integer number (24549210).

Almost surely, 2^342420023 is an apocalyptic number.

342420023 is a deficient number, since it is larger than the sum of its proper divisors (50367337).

342420023 is a wasteful number, since it uses less digits than its factorization.

342420023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17698.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 342420023 is about 18504.5946456549. The cubic root of 342420023 is about 699.6052352375.

Adding to 342420023 its reverse (320024243), we get a palindrome (662444266).

The spelling of 342420023 in words is "three hundred forty-two million, four hundred twenty thousand, twenty-three".