816449682 has 8 divisors (see below), whose sum is σ = 1632899376. Its totient is φ = 272149892.

The previous prime is 816449657. The next prime is 816449693. The reversal of 816449682 is 286944618.

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

816449682 is an admirable number.

It is a super-2 number, since 2×816449682² = 1333180166475802248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68037468 + ... + 68037479.

It is an arithmetic number, because the mean of its divisors is an integer number (204112422).

Almost surely, 2^816449682 is an apocalyptic number.

816449682 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

816449682 is a wasteful number, since it uses less digits than its factorization.

816449682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136074952.

The product of its digits is 663552, while the sum is 48.

The square root of 816449682 is about 28573.5836394387. The cubic root of 816449682 is about 934.6373695512.

The spelling of 816449682 in words is "eight hundred sixteen million, four hundred forty-nine thousand, six hundred eighty-two".