361579409 has 8 divisors (see below), whose sum is σ = 390073320. Its totient is φ = 333888256.

The previous prime is 361579403. The next prime is 361579411. The reversal of 361579409 is 904975163.

It can be written as a sum of positive squares in 4 ways, for example, as 73530625 + 288048784 = 8575^2 + 16972^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361579409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 361579409.

It is not an unprimeable number, because it can be changed into a prime (361579403) by changing a digit.

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, 199754 + ... + 201555.

It is an arithmetic number, because the mean of its divisors is an integer number (48759165).

Almost surely, 2^361579409 is an apocalyptic number.

It is an amenable number.

361579409 is a deficient number, since it is larger than the sum of its proper divisors (28493911).

361579409 is a wasteful number, since it uses less digits than its factorization.

361579409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401379.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 361579409 is about 19015.2414920242. The cubic root of 361579409 is about 712.4174745498.

The spelling of 361579409 in words is "three hundred sixty-one million, five hundred seventy-nine thousand, four hundred nine".