355128 has 16 divisors (see below), whose sum is σ = 887880. Its totient is φ = 118368.

The previous prime is 355127. The next prime is 355139. The reversal of 355128 is 821553.

It is a super-2 number, since 2×355128² = 252231792768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 14797 = 355128 / (3 + 5 + 5 + 1 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 355098 and 355107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7375 + ... + 7422.

2³⁵⁵¹²⁸ is an apocalyptic number.

It is an amenable number.

355128 is an abundant number, since it is smaller than the sum of its proper divisors (532752).

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

355128 is a wasteful number, since it uses less digits than its factorization.

355128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14806 (or 14802 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 355128 is about 595.9261699238. The cubic root of 355128 is about 70.8154966238.

The spelling of 355128 in words is "three hundred fifty-five thousand, one hundred twenty-eight".