818396285 has 64 divisors (see below), whose sum is σ = 1195084800. Its totient is φ = 537384960.

The previous prime is 818396279. The next prime is 818396309. The reversal of 818396285 is 582693818.

It is not a de Polignac number, because 818396285 - 2¹⁶ = 818330749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7242389 + ... + 7242501.

It is an arithmetic number, because the mean of its divisors is an integer number (18673200).

Almost surely, 2^818396285 is an apocalyptic number.

It is an amenable number.

818396285 is a deficient number, since it is larger than the sum of its proper divisors (376688515).

818396285 is a wasteful number, since it uses less digits than its factorization.

818396285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 269 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The square root of 818396285 is about 28607.6263433372. The cubic root of 818396285 is about 935.3795765032.

The spelling of 818396285 in words is "eight hundred eighteen million, three hundred ninety-six thousand, two hundred eighty-five".