352224520 has 32 divisors (see below), whose sum is σ = 793978200. Its totient is φ = 140627968.

The previous prime is 352224493. The next prime is 352224559. The reversal of 352224520 is 25422253.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 101888836 + 250335684 = 10094^2 + 15822^2 .

It is a super-2 number, since 2×352224520² = 248124224978460800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14376 + ... + 30184.

Almost surely, 2^352224520 is an apocalyptic number.

It is an amenable number.

352224520 is an abundant number, since it is smaller than the sum of its proper divisors (441753680).

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

352224520 is a wasteful number, since it uses less digits than its factorization.

352224520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16377 (or 16373 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 352224520 is about 18767.6455635756. The cubic root of 352224520 is about 706.2197551984.

Adding to 352224520 its reverse (25422253), we get a palindrome (377646773).

The spelling of 352224520 in words is "three hundred fifty-two million, two hundred twenty-four thousand, five hundred twenty".