855426720 has 48 divisors (see below), whose sum is σ = 2694595680. Its totient is φ = 228113664.

The previous prime is 855426713. The next prime is 855426727. The reversal of 855426720 is 27624558.

855426720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (855426713) and next prime (855426727).

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

It is not an unprimeable number, because it can be changed into a prime (855426727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890590 + ... + 891549.

It is an arithmetic number, because the mean of its divisors is an integer number (56137410).

Almost surely, 2^855426720 is an apocalyptic number.

855426720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

855426720 is an abundant number, since it is smaller than the sum of its proper divisors (1839168960).

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

855426720 is a wasteful number, since it uses less digits than its factorization.

855426720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782157 (or 1782149 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 855426720 is about 29247.6788822635. The cubic root of 855426720 is about 949.2798679192.

The spelling of 855426720 in words is "eight hundred fifty-five million, four hundred twenty-six thousand, seven hundred twenty".