354220 has 24 divisors (see below), whose sum is σ = 756000. Its totient is φ = 139392.

The previous prime is 354209. The next prime is 354247. The reversal of 354220 is 22453.

It is a super-3 number, since 3×354220³ = 133333871914344000, which contains 333 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 354194 and 354203.

It is an unprimeable number.

354220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1681 + ... + 1879.

It is an arithmetic number, because the mean of its divisors is an integer number (31500).

2³⁵⁴²²⁰ is an apocalyptic number.

It is an amenable number.

354220 is an abundant number, since it is smaller than the sum of its proper divisors (401780).

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

354220 is a wasteful number, since it uses less digits than its factorization.

354220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 354220 is about 595.1638429878. The cubic root of 354220 is about 70.7550908447.

Adding to 354220 its reverse (22453), we get a palindrome (376673).

The spelling of 354220 in words is "three hundred fifty-four thousand, two hundred twenty".