816830412 has 12 divisors (see below), whose sum is σ = 1905937656. Its totient is φ = 272276800.

The previous prime is 816830411. The next prime is 816830431. The reversal of 816830412 is 214038618.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×816830412³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (816830411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34034589 + ... + 34034612.

It is an arithmetic number, because the mean of its divisors is an integer number (158828138).

Almost surely, 2^816830412 is an apocalyptic number.

It is an amenable number.

816830412 is an abundant number, since it is smaller than the sum of its proper divisors (1089107244).

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

816830412 is a wasteful number, since it uses less digits than its factorization.

816830412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68069208 (or 68069206 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 816830412 is about 28580.2451354078. The cubic root of 816830412 is about 934.7826282222.

The spelling of 816830412 in words is "eight hundred sixteen million, eight hundred thirty thousand, four hundred twelve".