855043488 has 288 divisors, whose sum is σ = 2773854720. Its totient is φ = 248002560.

The previous prime is 855043487. The next prime is 855043489. The reversal of 855043488 is 884340558.

855043488 is a `hidden beast` number, since 85 + 50 + 43 + 488 = 666.

It is an interprime number because it is at equal distance from previous prime (855043487) and next prime (855043489).

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×855043488² = 1462198732742412288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (855043487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6151323 + ... + 6151461.

It is an arithmetic number, because the mean of its divisors is an integer number (9631440).

Almost surely, 2^855043488 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 855043488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1386927360).

855043488 is an abundant number, since it is smaller than the sum of its proper divisors (1918811232).

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

855043488 is a wasteful number, since it uses less digits than its factorization.

855043488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The square root of 855043488 is about 29241.1266540809. The cubic root of 855043488 is about 949.1380873108.

The spelling of 855043488 in words is "eight hundred fifty-five million, forty-three thousand, four hundred eighty-eight".