561168338 has 8 divisors (see below), whose sum is σ = 842770380. Its totient is φ = 280244880.

The previous prime is 561168277. The next prime is 561168371. The reversal of 561168338 is 833861165.

It can be written as a sum of positive squares in 2 ways, for example, as 484308049 + 76860289 = 22007^2 + 8767^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 561168295 and 561168304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167573 + ... + 170888.

Almost surely, 2^561168338 is an apocalyptic number.

561168338 is a deficient number, since it is larger than the sum of its proper divisors (281602042).

561168338 is a wasteful number, since it uses less digits than its factorization.

561168338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339292.

The product of its digits is 103680, while the sum is 41.

The square root of 561168338 is about 23688.9919160778. The cubic root of 561168338 is about 824.8298825239.

The spelling of 561168338 in words is "five hundred sixty-one million, one hundred sixty-eight thousand, three hundred thirty-eight".