352280820 has 48 divisors (see below), whose sum is σ = 987275520. Its totient is φ = 93856896.

The previous prime is 352280723. The next prime is 352280821. The reversal of 352280820 is 28082253.

It is a super-2 number, since 2×352280820² = 248203552279744800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352280821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93126 + ... + 96834.

It is an arithmetic number, because the mean of its divisors is an integer number (20568240).

Almost surely, 2^352280820 is an apocalyptic number.

352280820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

352280820 is an abundant number, since it is smaller than the sum of its proper divisors (634994700).

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

352280820 is a wasteful number, since it uses less digits than its factorization.

352280820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5304 (or 5302 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 352280820 is about 18769.1454254050. The cubic root of 352280820 is about 706.2573808715.

The spelling of 352280820 in words is "three hundred fifty-two million, two hundred eighty thousand, eight hundred twenty".