500442401 has 4 divisors (see below), whose sum is σ = 504262704. Its totient is φ = 496622100.

The previous prime is 500442391. The next prime is 500442403. The reversal of 500442401 is 104244005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500442401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500442403) 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 in 3 ways as a sum of consecutive naturals, for example, 1909955 + ... + 1910216.

It is an arithmetic number, because the mean of its divisors is an integer number (126065676).

Almost surely, 2^500442401 is an apocalyptic number.

It is an amenable number.

500442401 is a deficient number, since it is larger than the sum of its proper divisors (3820303).

500442401 is a wasteful number, since it uses less digits than its factorization.

500442401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820302.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 500442401 is about 22370.5699748576. The cubic root of 500442401 is about 793.9345462481.

Adding to 500442401 its reverse (104244005), we get a palindrome (604686406).

The spelling of 500442401 in words is "five hundred million, four hundred forty-two thousand, four hundred one".