561160344 has 128 divisors (see below), whose sum is σ = 1530627840. Its totient is φ = 170790912.

The previous prime is 561160331. The next prime is 561160349. The reversal of 561160344 is 443061165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561160349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2471959 + ... + 2472185.

It is an arithmetic number, because the mean of its divisors is an integer number (11958030).

Almost surely, 2^561160344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561160344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765313920).

561160344 is an abundant number, since it is smaller than the sum of its proper divisors (969467496).

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

561160344 is a wasteful number, since it uses less digits than its factorization.

561160344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 561160344 is about 23688.8231873177. The cubic root of 561160344 is about 824.8259658612.

The spelling of 561160344 in words is "five hundred sixty-one million, one hundred sixty thousand, three hundred forty-four".