500642642 has 4 divisors (see below), whose sum is σ = 750963966. Its totient is φ = 250321320.

The previous prime is 500642627. The next prime is 500642669. The reversal of 500642642 is 246246005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246246005 = 5 ⋅49249201.

It can be written as a sum of positive squares in only one way, i.e., 451095121 + 49547521 = 21239^2 + 7039^2 .

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 as a sum of consecutive naturals, namely, 125160659 + ... + 125160662.

Almost surely, 2^500642642 is an apocalyptic number.

500642642 is a deficient number, since it is larger than the sum of its proper divisors (250321324).

500642642 is a wasteful number, since it uses less digits than its factorization.

500642642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250321323.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 500642642 is about 22375.0450725803. The cubic root of 500642642 is about 794.0404239328.

Adding to 500642642 its reverse (246246005), we get a palindrome (746888647).

The spelling of 500642642 in words is "five hundred million, six hundred forty-two thousand, six hundred forty-two".