352609393 has 4 divisors (see below), whose sum is σ = 373351140. Its totient is φ = 331867648.

The previous prime is 352609373. The next prime is 352609403. The reversal of 352609393 is 393906253.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 326271969 + 26337424 = 18063^2 + 5132^2 .

It is a cyclic number.

It is not a de Polignac number, because 352609393 - 2⁹ = 352608881 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352609303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10370848 + ... + 10370881.

It is an arithmetic number, because the mean of its divisors is an integer number (93337785).

Almost surely, 2^352609393 is an apocalyptic number.

It is an amenable number.

352609393 is a deficient number, since it is larger than the sum of its proper divisors (20741747).

352609393 is a wasteful number, since it uses less digits than its factorization.

352609393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20741746.

The product of its (nonzero) digits is 131220, while the sum is 40.

The square root of 352609393 is about 18777.8963944314. The cubic root of 352609393 is about 706.4768885142.

The spelling of 352609393 in words is "three hundred fifty-two million, six hundred nine thousand, three hundred ninety-three".