855261342 has 128 divisors (see below), whose sum is σ = 2107728000. Its totient is φ = 260200512.

The previous prime is 855261331. The next prime is 855261343. The reversal of 855261342 is 243162558.

855261342 is a `hidden beast` number, since 8 + 55 + 261 + 342 = 666.

855261342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 855261297 and 855261306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855261343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9609634 + ... + 9609722.

It is an arithmetic number, because the mean of its divisors is an integer number (16466625).

Almost surely, 2^855261342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855261342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053864000).

855261342 is an abundant number, since it is smaller than the sum of its proper divisors (1252466658).

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

855261342 is an frugal number, since it uses more digits than its factorization.

855261342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 107 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 855261342 is about 29244.8515468963. The cubic root of 855261342 is about 949.2186898272.

It can be divided in two parts, 85526 and 1342, that added together give a palindrome (86868).

The spelling of 855261342 in words is "eight hundred fifty-five million, two hundred sixty-one thousand, three hundred forty-two".