355340 has 24 divisors (see below), whose sum is σ = 757680. Its totient is φ = 139968.

The previous prime is 355339. The next prime is 355343. The reversal of 355340 is 43553.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 355340.

It is not an unprimeable number, because it can be changed into a prime (355343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2099 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (31570).

2³⁵⁵³⁴⁰ is an apocalyptic number.

It is an amenable number.

355340 is an abundant number, since it is smaller than the sum of its proper divisors (402340).

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

355340 is a wasteful number, since it uses less digits than its factorization.

355340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 355340 is about 596.1040177687. The cubic root of 355340 is about 70.8295853457.

Adding to 355340 its reverse (43553), we get a palindrome (398893).

The spelling of 355340 in words is "three hundred fifty-five thousand, three hundred forty".