561448 has 8 divisors (see below), whose sum is σ = 1052730. Its totient is φ = 280720.

The previous prime is 561439. The next prime is 561461. The reversal of 561448 is 844165.

It can be written as a sum of positive squares in only one way, i.e., 492804 + 68644 = 702^2 + 262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

561448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35083 + ... + 35098.

2⁵⁶¹⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

561448 is a deficient number, since it is larger than the sum of its proper divisors (491282).

561448 is a wasteful number, since it uses less digits than its factorization.

561448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70187 (or 70183 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 561448 is about 749.2983384474. The cubic root of 561448 is about 82.4966879601.

The spelling of 561448 in words is "five hundred sixty-one thousand, four hundred forty-eight".