561474 has 12 divisors (see below), whose sum is σ = 1216566. Its totient is φ = 187152.

The previous prime is 561461. The next prime is 561521. The reversal of 561474 is 474165.

It can be written as a sum of positive squares in only one way, i.e., 480249 + 81225 = 693^2 + 285^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

561474 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 in 5 ways as a sum of consecutive naturals, for example, 15579 + ... + 15614.

2⁵⁶¹⁴⁷⁴ is an apocalyptic number.

561474 is an abundant number, since it is smaller than the sum of its proper divisors (655092).

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

561474 is a wasteful number, since it uses less digits than its factorization.

561474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31201 (or 31198 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 561474 is about 749.3156878112. The cubic root of 561474 is about 82.4979613821.

It can be divided in two parts, 561 and 474, that added together give a triangular number (1035 = T₄₅).

The spelling of 561474 in words is "five hundred sixty-one thousand, four hundred seventy-four".