855451008 has 48 divisors (see below), whose sum is σ = 2461652700. Its totient is φ = 285149952.

The previous prime is 855450977. The next prime is 855451013. The reversal of 855451008 is 800154558.

855451008 is a `hidden beast` number, since 8 + 5 + 545 + 100 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370138 + ... + 372441.

Almost surely, 2^855451008 is an apocalyptic number.

It is an amenable number.

855451008 is an abundant number, since it is smaller than the sum of its proper divisors (1606201692).

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

855451008 is a wasteful number, since it uses less digits than its factorization.

855451008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742599 (or 742584 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 855451008 is about 29248.0940917524. The cubic root of 855451008 is about 949.2888520869.

The spelling of 855451008 in words is "eight hundred fifty-five million, four hundred fifty-one thousand, eight".