561333234 has 64 divisors (see below), whose sum is σ = 1482043392. Its totient is φ = 137222400.

The previous prime is 561333221. The next prime is 561333293. The reversal of 561333234 is 432333165.

561333234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27882 + ... + 43589.

It is an arithmetic number, because the mean of its divisors is an integer number (23156928).

Almost surely, 2^561333234 is an apocalyptic number.

561333234 is an abundant number, since it is smaller than the sum of its proper divisors (920710158).

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

561333234 is a wasteful number, since it uses less digits than its factorization.

561333234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71511.

The product of its digits is 19440, while the sum is 30.

The square root of 561333234 is about 23692.4720955834. The cubic root of 561333234 is about 824.9106650742.

Adding to 561333234 its reverse (432333165), we get a palindrome (993666399).

The spelling of 561333234 in words is "five hundred sixty-one million, three hundred thirty-three thousand, two hundred thirty-four".