823149882 has 48 divisors (see below), whose sum is σ = 1937944320. Its totient is φ = 251553600.

The previous prime is 823149881. The next prime is 823149893. The reversal of 823149882 is 288941328.

823149882 is a `hidden beast` number, since 82 + 3 + 1 + 498 + 82 = 666.

It is a super-2 number, since 2×823149882² = 1355151456473227848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (823149881) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 28219 + ... + 49422.

It is an arithmetic number, because the mean of its divisors is an integer number (40373840).

Almost surely, 2^823149882 is an apocalyptic number.

823149882 is an abundant number, since it is smaller than the sum of its proper divisors (1114794438).

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

823149882 is a wasteful number, since it uses less digits than its factorization.

823149882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77699 (or 77696 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 823149882 is about 28690.5887356813. The cubic root of 823149882 is about 937.1871100915.

The spelling of 823149882 in words is "eight hundred twenty-three million, one hundred forty-nine thousand, eight hundred eighty-two".