846366381 has 64 divisors (see below), whose sum is σ = 1537228800. Its totient is φ = 449437248.

The previous prime is 846366373. The next prime is 846366383. The reversal of 846366381 is 183663648.

846366381 is a `hidden beast` number, since 8 + 4 + 6 + 3 + 6 + 638 + 1 = 666.

846366381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 846366381 - 2³ = 846366373 is a prime.

It is a super-2 number, since 2×846366381² = 1432672101774074322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846366383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 188100 + ... + 192546.

It is an arithmetic number, because the mean of its divisors is an integer number (24019200).

Almost surely, 2^846366381 is an apocalyptic number.

It is an amenable number.

846366381 is a deficient number, since it is larger than the sum of its proper divisors (690862419).

846366381 is a wasteful number, since it uses less digits than its factorization.

846366381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535 (or 4529 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 846366381 is about 29092.3766818732. The cubic root of 846366381 is about 945.9165006226.

The spelling of 846366381 in words is "eight hundred forty-six million, three hundred sixty-six thousand, three hundred eighty-one".