561907474 has 8 divisors (see below), whose sum is σ = 843976908. Its totient is φ = 280581840.

The previous prime is 561907469. The next prime is 561907481. The reversal of 561907474 is 474709165.

It can be written as a sum of positive squares in 2 ways, for example, as 513702225 + 48205249 = 22665^2 + 6943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 561907474.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184057 + ... + 187084.

Almost surely, 2^561907474 is an apocalyptic number.

561907474 is a deficient number, since it is larger than the sum of its proper divisors (282069434).

561907474 is a wasteful number, since it uses less digits than its factorization.

561907474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371900.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 561907474 is about 23704.5876150588. The cubic root of 561907474 is about 825.1918618357.

The spelling of 561907474 in words is "five hundred sixty-one million, nine hundred seven thousand, four hundred seventy-four".