474742561 has 4 divisors (see below), whose sum is σ = 502668612. Its totient is φ = 446816512.

The previous prime is 474742549. The next prime is 474742577. The reversal of 474742561 is 165247474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 336539025 + 138203536 = 18345^2 + 11756^2 .

It is a cyclic number.

It is not a de Polignac number, because 474742561 - 2¹⁵ = 474709793 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (474742511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13963000 + ... + 13963033.

It is an arithmetic number, because the mean of its divisors is an integer number (125667153).

Almost surely, 2^474742561 is an apocalyptic number.

It is an amenable number.

474742561 is a deficient number, since it is larger than the sum of its proper divisors (27926051).

474742561 is a wasteful number, since it uses less digits than its factorization.

474742561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27926050.

The product of its digits is 188160, while the sum is 40.

The square root of 474742561 is about 21788.5878615389. The cubic root of 474742561 is about 780.1043915727.

The spelling of 474742561 in words is "four hundred seventy-four million, seven hundred forty-two thousand, five hundred sixty-one".