845255988 has 36 divisors (see below), whose sum is σ = 2186312128. Its totient is φ = 275199120.

The previous prime is 845255941. The next prime is 845256017. The reversal of 845255988 is 889552548.

It is a happy number.

845255988 is a `hidden beast` number, since 8 + 4 + 5 + 2 + 559 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×845255988² = 1428915370499712288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271468 + ... + 274563.

Almost surely, 2^845255988 is an apocalyptic number.

It is an amenable number.

845255988 is an abundant number, since it is smaller than the sum of its proper divisors (1341056140).

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

845255988 is a wasteful number, since it uses less digits than its factorization.

845255988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546084 (or 546079 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 54.

The square root of 845255988 is about 29073.2865015292. The cubic root of 845255988 is about 945.5026535577.

The spelling of 845255988 in words is "eight hundred forty-five million, two hundred fifty-five thousand, nine hundred eighty-eight".