342021120 has 176 divisors, whose sum is σ = 1250602368. Its totient is φ = 78151680.

The previous prime is 342021103. The next prime is 342021149. The reversal of 342021120 is 21120243.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 342021120.

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, 105930 + ... + 109110.

Almost surely, 2^342021120 is an apocalyptic number.

342021120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625301184).

342021120 is an abundant number, since it is smaller than the sum of its proper divisors (908581248).

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

342021120 is a wasteful number, since it uses less digits than its factorization.

342021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216 (or 3198 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 342021120 is about 18493.8130194938. The cubic root of 342021120 is about 699.3334607616. Note that the first 3 decimals are identical.

Adding to 342021120 its reverse (21120243), we get a palindrome (363141363).

The spelling of 342021120 in words is "three hundred forty-two million, twenty-one thousand, one hundred twenty".