501641642 has 8 divisors (see below), whose sum is σ = 770815332. Its totient is φ = 244703200.

The previous prime is 501641603. The next prime is 501641689. The reversal of 501641642 is 246146105.

It can be written as a sum of positive squares in 2 ways, for example, as 499477801 + 2163841 = 22349^2 + 1471^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3058709 + ... + 3058872.

Almost surely, 2^501641642 is an apocalyptic number.

501641642 is a deficient number, since it is larger than the sum of its proper divisors (269173690).

501641642 is a wasteful number, since it uses less digits than its factorization.

501641642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117624.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 501641642 is about 22397.3579245410. The cubic root of 501641642 is about 794.5682251209.

Adding to 501641642 its reverse (246146105), we get a palindrome (747787747).

The spelling of 501641642 in words is "five hundred one million, six hundred forty-one thousand, six hundred forty-two".