501630466 has 4 divisors (see below), whose sum is σ = 752445702. Its totient is φ = 250815232.

The previous prime is 501630463. The next prime is 501630491. The reversal of 501630466 is 664036105.

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

It can be written as a sum of positive squares in only one way, i.e., 378886225 + 122744241 = 19465^2 + 11079^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (501630461) by changing a digit.

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 as a sum of consecutive naturals, namely, 125407615 + ... + 125407618.

Almost surely, 2^501630466 is an apocalyptic number.

501630466 is a deficient number, since it is larger than the sum of its proper divisors (250815236).

501630466 is a wasteful number, since it uses less digits than its factorization.

501630466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250815235.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 501630466 is about 22397.1084294379. The cubic root of 501630466 is about 794.5623243877.

The spelling of 501630466 in words is "five hundred one million, six hundred thirty thousand, four hundred sixty-six".