352641220 has 12 divisors (see below), whose sum is σ = 740546604. Its totient is φ = 141056480.

The previous prime is 352641161. The next prime is 352641253. The reversal of 352641220 is 22146253.

It can be written as a sum of positive squares in 2 ways, for example, as 158206084 + 194435136 = 12578^2 + 13944^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8816011 + ... + 8816050.

It is an arithmetic number, because the mean of its divisors is an integer number (61712217).

Almost surely, 2^352641220 is an apocalyptic number.

It is an amenable number.

352641220 is an abundant number, since it is smaller than the sum of its proper divisors (387905384).

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

352641220 is a wasteful number, since it uses less digits than its factorization.

352641220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17632070 (or 17632068 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 352641220 is about 18778.7438344528. The cubic root of 352641220 is about 706.4981437274.

Adding to 352641220 its reverse (22146253), we get a palindrome (374787473).

The spelling of 352641220 in words is "three hundred fifty-two million, six hundred forty-one thousand, two hundred twenty".