342100020 has 48 divisors (see below), whose sum is σ = 970018560. Its totient is φ = 90070656.

The previous prime is 342100019. The next prime is 342100049. The reversal of 342100020 is 20001243.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 342099969 and 342100005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31347 + ... + 40826.

It is an arithmetic number, because the mean of its divisors is an integer number (20208720).

Almost surely, 2^342100020 is an apocalyptic number.

342100020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

342100020 is an abundant number, since it is smaller than the sum of its proper divisors (627918540).

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

342100020 is a wasteful number, since it uses less digits than its factorization.

342100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72264 (or 72262 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 342100020 is about 18495.9460423088. The cubic root of 342100020 is about 699.3872324582.

Adding to 342100020 its reverse (20001243), we get a palindrome (362101263).

The spelling of 342100020 in words is "three hundred forty-two million, one hundred thousand, twenty".