561044232 has 160 divisors (see below), whose sum is σ = 1806868800. Its totient is φ = 159983424.

The previous prime is 561044213. The next prime is 561044233. The reversal of 561044232 is 232440165.

561044232 is a `hidden beast` number, since 5 + 610 + 4 + 42 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 561044196 and 561044205.

It is not an unprimeable number, because it can be changed into a prime (561044233) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1101994 + ... + 1102502.

It is an arithmetic number, because the mean of its divisors is an integer number (11292930).

Almost surely, 2^561044232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561044232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903434400).

561044232 is an abundant number, since it is smaller than the sum of its proper divisors (1245824568).

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

561044232 is an frugal number, since it uses more digits than its factorization.

561044232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 561044232 is about 23686.3722845015. The cubic root of 561044232 is about 824.7690725567.

Adding to 561044232 its reverse (232440165), we get a palindrome (793484397).

The spelling of 561044232 in words is "five hundred sixty-one million, forty-four thousand, two hundred thirty-two".