420566474 has 8 divisors (see below), whose sum is σ = 637938180. Its totient is φ = 207920416.

The previous prime is 420566453. The next prime is 420566483. The reversal of 420566474 is 474665024.

It can be written as a sum of positive squares in 2 ways, for example, as 392317249 + 28249225 = 19807^2 + 5315^2 .

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

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, 1181189 + ... + 1181544.

Almost surely, 2^420566474 is an apocalyptic number.

420566474 is a deficient number, since it is larger than the sum of its proper divisors (217371706).

420566474 is a wasteful number, since it uses less digits than its factorization.

420566474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362824.

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 420566474 is about 20507.7174253987. The cubic root of 420566474 is about 749.2237740935.

The spelling of 420566474 in words is "four hundred twenty million, five hundred sixty-six thousand, four hundred seventy-four".