561041398 has 8 divisors (see below), whose sum is σ = 843988392. Its totient is φ = 279711936.

The previous prime is 561041389. The next prime is 561041401. The reversal of 561041398 is 893140165.

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

It is a congruent number.

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, 403515 + ... + 404902.

It is an arithmetic number, because the mean of its divisors is an integer number (105498549).

Almost surely, 2^561041398 is an apocalyptic number.

561041398 is a deficient number, since it is larger than the sum of its proper divisors (282946994).

561041398 is a wasteful number, since it uses less digits than its factorization.

561041398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808766.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 561041398 is about 23686.3124609974. The cubic root of 561041398 is about 824.7676838371.

The spelling of 561041398 in words is "five hundred sixty-one million, forty-one thousand, three hundred ninety-eight".