561321474 has 16 divisors (see below), whose sum is σ = 1283020608. Its totient is φ = 160377552.

The previous prime is 561321473. The next prime is 561321499. The reversal of 561321474 is 474123165.

It is not an unprimeable number, because it can be changed into a prime (561321473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6682357 + ... + 6682440.

It is an arithmetic number, because the mean of its divisors is an integer number (80188788).

Almost surely, 2^561321474 is an apocalyptic number.

561321474 is an abundant number, since it is smaller than the sum of its proper divisors (721699134).

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

561321474 is a wasteful number, since it uses less digits than its factorization.

561321474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13364809.

The product of its digits is 20160, while the sum is 33.

The square root of 561321474 is about 23692.2239141875. The cubic root of 561321474 is about 824.9049043742.

The spelling of 561321474 in words is "five hundred sixty-one million, three hundred twenty-one thousand, four hundred seventy-four".