500302381 has 2 divisors, whose sum is σ = 500302382. Its totient is φ = 500302380.

The previous prime is 500302373. The next prime is 500302409. The reversal of 500302381 is 183203005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478296900 + 22005481 = 21870^2 + 4691^2 .

It is a cyclic number.

It is not a de Polignac number, because 500302381 - 2³ = 500302373 is a prime.

It is a super-2 number, since 2×500302381² = 500604944868538322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500302321) 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, 250151190 + 250151191.

It is an arithmetic number, because the mean of its divisors is an integer number (250151191).

Almost surely, 2^500302381 is an apocalyptic number.

It is an amenable number.

500302381 is a deficient number, since it is larger than the sum of its proper divisors (1).

500302381 is an equidigital number, since it uses as much as digits as its factorization.

500302381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 500302381 is about 22367.4401977517. The cubic root of 500302381 is about 793.8604937135.

Adding to 500302381 its reverse (183203005), we get a palindrome (683505386).

The spelling of 500302381 in words is "five hundred million, three hundred two thousand, three hundred eighty-one".