2255436 has 72 divisors (see below), whose sum is σ = 6150144. Its totient is φ = 695520.

The previous prime is 2255419. The next prime is 2255437. The reversal of 2255436 is 6345522.

2255436 is a `hidden beast` number, since 225 + 5 + 436 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47965 + ... + 48011.

2^2255436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3075072).

2255436 is an abundant number, since it is smaller than the sum of its proper divisors (3894708).

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

2255436 is a wasteful number, since it uses less digits than its factorization.

2255436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 126 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 2255436 is about 1501.8109068721. The cubic root of 2255436 is about 131.1425133588.

The spelling of 2255436 in words is "two million, two hundred fifty-five thousand, four hundred thirty-six".