561339294 has 8 divisors (see below), whose sum is σ = 1122678600. Its totient is φ = 187113096.

The previous prime is 561339293. The next prime is 561339301. The reversal of 561339294 is 492933165.

It is a happy number.

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

561339294 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561339293) by changing a digit.

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, 46778269 + ... + 46778280.

It is an arithmetic number, because the mean of its divisors is an integer number (140334825).

Almost surely, 2^561339294 is an apocalyptic number.

561339294 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561339294 is a wasteful number, since it uses less digits than its factorization.

561339294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93556554.

The product of its digits is 174960, while the sum is 42.

The square root of 561339294 is about 23692.5999839612. The cubic root of 561339294 is about 824.9136335668.

The spelling of 561339294 in words is "five hundred sixty-one million, three hundred thirty-nine thousand, two hundred ninety-four".