561047444 has 12 divisors (see below), whose sum is σ = 1005780468. Its totient is φ = 273681600.

The previous prime is 561047401. The next prime is 561047483. The reversal of 561047444 is 444740165.

It can be written as a sum of positive squares in 2 ways, for example, as 152522500 + 408524944 = 12350^2 + 20212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710347 + ... + 1710674.

It is an arithmetic number, because the mean of its divisors is an integer number (83815039).

Almost surely, 2^561047444 is an apocalyptic number.

It is an amenable number.

561047444 is a deficient number, since it is larger than the sum of its proper divisors (444733024).

561047444 is a wasteful number, since it uses less digits than its factorization.

561047444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421066 (or 3421064 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 561047444 is about 23686.4400871047. The cubic root of 561047444 is about 824.7706464987.

The spelling of 561047444 in words is "five hundred sixty-one million, forty-seven thousand, four hundred forty-four".