816549246 has 36 divisors (see below), whose sum is σ = 1787282016. Its totient is φ = 269427600.

The previous prime is 816549241. The next prime is 816549247. The reversal of 816549246 is 642945618.

816549246 is a `hidden beast` number, since 81 + 6 + 549 + 24 + 6 = 666.

It is a super-3 number, since 3×816549246³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816549241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 181395 + ... + 185841.

Almost surely, 2^816549246 is an apocalyptic number.

816549246 is an abundant number, since it is smaller than the sum of its proper divisors (970732770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

816549246 is a wasteful number, since it uses less digits than its factorization.

816549246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657 (or 4553 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 816549246 is about 28575.3258249141. The cubic root of 816549246 is about 934.6753602381.

The spelling of 816549246 in words is "eight hundred sixteen million, five hundred forty-nine thousand, two hundred forty-six".