810824338 has 4 divisors (see below), whose sum is σ = 1216236510. Its totient is φ = 405412168.

The previous prime is 810824317. The next prime is 810824341. The reversal of 810824338 is 833428018.

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., 628655329 + 182169009 = 25073^2 + 13497^2 .

It is a super-2 number, since 2×810824338² = 1314872214186276488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 810824297 and 810824306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202706083 + ... + 202706086.

Almost surely, 2^810824338 is an apocalyptic number.

810824338 is a deficient number, since it is larger than the sum of its proper divisors (405412172).

810824338 is a wasteful number, since it uses less digits than its factorization.

810824338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405412171.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 810824338 is about 28474.9774012202. The cubic root of 810824338 is about 932.4858680088.

The spelling of 810824338 in words is "eight hundred ten million, eight hundred twenty-four thousand, three hundred thirty-eight".