354280 has 32 divisors (see below), whose sum is σ = 845640. Its totient is φ = 133120.

The previous prime is 354271. The next prime is 354301. The reversal of 354280 is 82453.

It can be written as a sum of positive squares in 4 ways, for example, as 293764 + 60516 = 542^2 + 246^2 .

It is an unprimeable number.

354280 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, 420 + ... + 940.

2³⁵⁴²⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422820).

354280 is an abundant number, since it is smaller than the sum of its proper divisors (491360).

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

354280 is a wasteful number, since it uses less digits than its factorization.

354280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 354280 is about 595.2142471413. The cubic root of 354280 is about 70.7590855992.

The spelling of 354280 in words is "three hundred fifty-four thousand, two hundred eighty".