352220645 has 8 divisors (see below), whose sum is σ = 483045504. Its totient is φ = 241522704.

The previous prime is 352220641. The next prime is 352220681. The reversal of 352220645 is 546022253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 352220645 - 2² = 352220641 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352220641) 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 7 ways as a sum of consecutive naturals, for example, 5031689 + ... + 5031758.

It is an arithmetic number, because the mean of its divisors is an integer number (60380688).

Almost surely, 2^352220645 is an apocalyptic number.

352220645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

352220645 is a deficient number, since it is larger than the sum of its proper divisors (130824859).

352220645 is a wasteful number, since it uses less digits than its factorization.

352220645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063459.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 352220645 is about 18767.5423271136. The cubic root of 352220645 is about 706.2171653620.

Adding to 352220645 its reverse (546022253), we get a palindrome (898242898).

The spelling of 352220645 in words is "three hundred fifty-two million, two hundred twenty thousand, six hundred forty-five".