855406120 has 16 divisors (see below), whose sum is σ = 1924663860. Its totient is φ = 342162432.

The previous prime is 855406117. The next prime is 855406121. The reversal of 855406120 is 21604558.

855406120 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 745617636 + 109788484 = 27306^2 + 10478^2 .

It is not an unprimeable number, because it can be changed into a prime (855406121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10692537 + ... + 10692616.

Almost surely, 2^855406120 is an apocalyptic number.

It is an amenable number.

855406120 is an abundant number, since it is smaller than the sum of its proper divisors (1069257740).

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

855406120 is a wasteful number, since it uses less digits than its factorization.

855406120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21385164 (or 21385160 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 855406120 is about 29247.3267154453. The cubic root of 855406120 is about 949.2722478150.

The spelling of 855406120 in words is "eight hundred fifty-five million, four hundred six thousand, one hundred twenty".