352780 has 24 divisors (see below), whose sum is σ = 766080. Its totient is φ = 136320.

The previous prime is 352771. The next prime is 352813. The reversal of 352780 is 87253.

It is a congruent number.

It is an unprimeable number.

352780 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 7 ways as a sum of consecutive naturals, for example, 336 + ... + 904.

It is an arithmetic number, because the mean of its divisors is an integer number (31920).

2³⁵²⁷⁸⁰ 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 352780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383040).

352780 is an abundant number, since it is smaller than the sum of its proper divisors (413300).

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

352780 is a wasteful number, since it uses less digits than its factorization.

352780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 352780 is about 593.9528600823. The cubic root of 352780 is about 70.6590811050.

The spelling of 352780 in words is "three hundred fifty-two thousand, seven hundred eighty".