352279409 has 8 divisors (see below), whose sum is σ = 354476520. Its totient is φ = 350089216.

The previous prime is 352279397. The next prime is 352279427. The reversal of 352279409 is 904972253.

It can be written as a sum of positive squares in 4 ways, for example, as 197824225 + 154455184 = 14065^2 + 12428^2 .

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 352279409 - 2²⁸ = 83843953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (352279439) 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, 129467 + ... + 132159.

It is an arithmetic number, because the mean of its divisors is an integer number (44309565).

Almost surely, 2^352279409 is an apocalyptic number.

It is an amenable number.

352279409 is a deficient number, since it is larger than the sum of its proper divisors (2197111).

352279409 is a wasteful number, since it uses less digits than its factorization.

352279409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 352279409 is about 18769.1078370817. The cubic root of 352279409 is about 706.2564379396.

The spelling of 352279409 in words is "three hundred fifty-two million, two hundred seventy-nine thousand, four hundred nine".