352530 has 24 divisors (see below), whose sum is σ = 916812. Its totient is φ = 93984.

The previous prime is 352523. The next prime is 352543. The reversal of 352530 is 35253.

352530 = 101² + 102² + ... + 127².

It can be written as a sum of positive squares in 2 ways, for example, as 349281 + 3249 = 591^2 + 57^2 .

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

It is an unprimeable number.

352530 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 (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1869 + ... + 2048.

2³⁵²⁵³⁰ is an apocalyptic number.

352530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

352530 is an abundant number, since it is smaller than the sum of its proper divisors (564282).

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

352530 is a wasteful number, since it uses less digits than its factorization.

352530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930 (or 3927 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 352530 is about 593.7423683720. The cubic root of 352530 is about 70.6423861443.

Adding to 352530 its reverse (35253), we get a palindrome (387783).

The spelling of 352530 in words is "three hundred fifty-two thousand, five hundred thirty".