816282385 has 8 divisors (see below), whose sum is σ = 993335616. Its totient is φ = 643828080.

The previous prime is 816282367. The next prime is 816282391. The reversal of 816282385 is 583282618.

816282385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 816282385 - 2²⁷ = 682064657 is a prime.

It is a super-2 number, since 2×816282385² = 1332633864122576450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1149339 + ... + 1150048.

It is an arithmetic number, because the mean of its divisors is an integer number (124166952).

Almost surely, 2^816282385 is an apocalyptic number.

It is an amenable number.

816282385 is a deficient number, since it is larger than the sum of its proper divisors (177053231).

816282385 is a wasteful number, since it uses less digits than its factorization.

816282385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299463.

The product of its digits is 184320, while the sum is 43.

The square root of 816282385 is about 28570.6560127695. The cubic root of 816282385 is about 934.5735269930.

The spelling of 816282385 in words is "eight hundred sixteen million, two hundred eighty-two thousand, three hundred eighty-five".