845881904 has 100 divisors (see below), whose sum is σ = 1940151864. Its totient is φ = 357202944.

The previous prime is 845881877. The next prime is 845881913. The reversal of 845881904 is 409188548.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3726239 + ... + 3726465.

Almost surely, 2^845881904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845881904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (970075932).

845881904 is an abundant number, since it is smaller than the sum of its proper divisors (1094269960).

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

845881904 is an equidigital number, since it uses as much as digits as its factorization.

845881904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 845881904 is about 29084.0489615872. The cubic root of 845881904 is about 945.7359790154.

The spelling of 845881904 in words is "eight hundred forty-five million, eight hundred eighty-one thousand, nine hundred four".