561246 has 48 divisors (see below), whose sum is σ = 1378944. Its totient is φ = 151536.

The previous prime is 561229. The next prime is 561251. The reversal of 561246 is 642165.

It is a congruent number.

It is an unprimeable number.

561246 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 23 ways as a sum of consecutive naturals, for example, 6721 + ... + 6803.

It is an arithmetic number, because the mean of its divisors is an integer number (28728).

2⁵⁶¹²⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (689472).

561246 is an abundant number, since it is smaller than the sum of its proper divisors (817698).

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

561246 is a wasteful number, since it uses less digits than its factorization.

561246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 118 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 561246 is about 749.1635335493. The cubic root of 561246 is about 82.4867931109.

Adding to 561246 its sum of digits (24), we get a triangular number (561270 = T₁₀₅₉).

The spelling of 561246 in words is "five hundred sixty-one thousand, two hundred forty-six".