855426 has 32 divisors (see below), whose sum is σ = 2011968. Its totient is φ = 239040.

The previous prime is 855419. The next prime is 855427. The reversal of 855426 is 624558.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 855393 and 855402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855427) by changing a digit.

855426 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360 + ... + 1356.

It is an arithmetic number, because the mean of its divisors is an integer number (62874).

2⁸⁵⁵⁴²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1005984).

855426 is an abundant number, since it is smaller than the sum of its proper divisors (1156542).

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

855426 is a wasteful number, since it uses less digits than its factorization.

855426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026.

The product of its digits is 9600, while the sum is 30.

The square root of 855426 is about 924.8924261772. The cubic root of 855426 is about 94.9279601588.

The spelling of 855426 in words is "eight hundred fifty-five thousand, four hundred twenty-six".