342102020 has 48 divisors (see below), whose sum is σ = 775193328. Its totient is φ = 126067200.

The previous prime is 342101993. The next prime is 342102029. The reversal of 342102020 is 20201243.

It can be written as a sum of positive squares in 8 ways, for example, as 4 + 342102016 = 2^2 + 18496^2 .

It is a junction number, because it is equal to n+sod(n) for n = 342101986 and 342102004.

It is not an unprimeable number, because it can be changed into a prime (342102029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181322 + ... + 183198.

It is an arithmetic number, because the mean of its divisors is an integer number (16149861).

Almost surely, 2^342102020 is an apocalyptic number.

It is an amenable number.

342102020 is an abundant number, since it is smaller than the sum of its proper divisors (433091308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

342102020 is a wasteful number, since it uses less digits than its factorization.

342102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600 (or 2598 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 342102020 is about 18496.0001081315. Note that the first 3 decimals coincide. The cubic root of 342102020 is about 699.3885953849.

Adding to 342102020 its reverse (20201243), we get a palindrome (362303263).

The spelling of 342102020 in words is "three hundred forty-two million, one hundred two thousand, twenty".