561345334 has 32 divisors (see below), whose sum is σ = 955809792. Its totient is φ = 244944000.

The previous prime is 561345331. The next prime is 561345341. The reversal of 561345334 is 433543165.

It is a self number, because there is not a number n which added to its sum of digits gives 561345334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561345331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83374 + ... + 89854.

It is an arithmetic number, because the mean of its divisors is an integer number (29869056).

Almost surely, 2^561345334 is an apocalyptic number.

561345334 is a deficient number, since it is larger than the sum of its proper divisors (394464458).

561345334 is a wasteful number, since it uses less digits than its factorization.

561345334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652.

The product of its digits is 64800, while the sum is 34.

The square root of 561345334 is about 23692.7274495783. The cubic root of 561345334 is about 824.9165922411.

Adding to 561345334 its reverse (433543165), we get a palindrome (994888499).

The spelling of 561345334 in words is "five hundred sixty-one million, three hundred forty-five thousand, three hundred thirty-four".