342324021 has 16 divisors (see below), whose sum is σ = 492902144. Its totient is φ = 210078144.

The previous prime is 342324011. The next prime is 342324023. The reversal of 342324021 is 120423243.

It is not a de Polignac number, because 342324021 - 2¹⁸ = 342061877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342324023) 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, 2355 + ... + 26271.

It is an arithmetic number, because the mean of its divisors is an integer number (30806384).

Almost surely, 2^342324021 is an apocalyptic number.

It is an amenable number.

342324021 is a deficient number, since it is larger than the sum of its proper divisors (150578123).

342324021 is a wasteful number, since it uses less digits than its factorization.

342324021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24300.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 342324021 is about 18502.0004594098. Note that the first 3 decimals coincide. The cubic root of 342324021 is about 699.5398479208.

Adding to 342324021 its reverse (120423243), we get a palindrome (462747264).

The spelling of 342324021 in words is "three hundred forty-two million, three hundred twenty-four thousand, twenty-one".