352220644 has 12 divisors (see below), whose sum is σ = 618105600. Its totient is φ = 175619048.

The previous prime is 352220641. The next prime is 352220681. The reversal of 352220644 is 446022253.

It is not an unprimeable number, because it can be changed into a prime (352220641) 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, 121204 + ... + 124075.

It is an arithmetic number, because the mean of its divisors is an integer number (51508800).

Almost surely, 2^352220644 is an apocalyptic number.

It is an amenable number.

352220644 is a deficient number, since it is larger than the sum of its proper divisors (265884956).

352220644 is a wasteful number, since it uses less digits than its factorization.

352220644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245642 (or 245640 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 352220644 is about 18767.5423004718. The cubic root of 352220644 is about 706.2171646937.

Adding to 352220644 its reverse (446022253), we get a palindrome (798242897).

The spelling of 352220644 in words is "three hundred fifty-two million, two hundred twenty thousand, six hundred forty-four".