352221430 has 32 divisors (see below), whose sum is σ = 728040960. Its totient is φ = 121338720.

The previous prime is 352221427. The next prime is 352221433. The reversal of 352221430 is 34122253.

It is an interprime number because it is at equal distance from previous prime (352221427) and next prime (352221433).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352221433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82174 + ... + 86353.

It is an arithmetic number, because the mean of its divisors is an integer number (22751280).

Almost surely, 2^352221430 is an apocalyptic number.

352221430 is an abundant number, since it is smaller than the sum of its proper divisors (375819530).

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

352221430 is a wasteful number, since it uses less digits than its factorization.

352221430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168564.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 352221430 is about 18767.5632408685. The cubic root of 352221430 is about 706.2176900143.

Adding to 352221430 its reverse (34122253), we get a palindrome (386343683).

The spelling of 352221430 in words is "three hundred fifty-two million, two hundred twenty-one thousand, four hundred thirty".