816142084 has 24 divisors (see below), whose sum is σ = 1478624000. Its totient is φ = 393755040.

The previous prime is 816142081. The next prime is 816142091. The reversal of 816142084 is 480241618.

It is not an unprimeable number, because it can be changed into a prime (816142081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33847 + ... + 52705.

Almost surely, 2^816142084 is an apocalyptic number.

It is an amenable number.

816142084 is a deficient number, since it is larger than the sum of its proper divisors (662481916).

816142084 is a wasteful number, since it uses less digits than its factorization.

816142084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19243 (or 19241 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 816142084 is about 28568.2005733648. The cubic root of 816142084 is about 934.5199797093.

The spelling of 816142084 in words is "eight hundred sixteen million, one hundred forty-two thousand, eighty-four".