561040441 has 8 divisors (see below), whose sum is σ = 604425920. Its totient is φ = 517687632.

The previous prime is 561040439. The next prime is 561040453. The reversal of 561040441 is 144040165.

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

It is a cyclic number.

It is not a de Polignac number, because 561040441 - 2¹ = 561040439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561040411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36646 + ... + 49648.

It is an arithmetic number, because the mean of its divisors is an integer number (75553240).

Almost surely, 2^561040441 is an apocalyptic number.

It is an amenable number.

561040441 is a deficient number, since it is larger than the sum of its proper divisors (43385479).

561040441 is a wasteful number, since it uses less digits than its factorization.

561040441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16335.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 561040441 is about 23686.2922594483. The cubic root of 561040441 is about 824.7672148859.

The spelling of 561040441 in words is "five hundred sixty-one million, forty thousand, four hundred forty-one".