342203220 has 144 divisors (see below), whose sum is σ = 1077345360. Its totient is φ = 87859200.

The previous prime is 342203189. The next prime is 342203231. The reversal of 342203220 is 22302243.

342203220 is a `hidden beast` number, since 342 + 2 + 0 + 322 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 118461456 + 223741764 = 10884^2 + 14958^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 342203193 and 342203202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 656560 + ... + 657080.

It is an arithmetic number, because the mean of its divisors is an integer number (7481565).

Almost surely, 2^342203220 is an apocalyptic number.

342203220 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 342203220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538672680).

342203220 is an abundant number, since it is smaller than the sum of its proper divisors (735142140).

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

342203220 is a wasteful number, since it uses less digits than its factorization.

342203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 342203220 is about 18498.7356324696. The cubic root of 342203220 is about 699.4575525416.

Adding to 342203220 its reverse (22302243), we get a palindrome (364505463).

The spelling of 342203220 in words is "three hundred forty-two million, two hundred three thousand, two hundred twenty".