8455244 has 36 divisors (see below), whose sum is σ = 17380440. Its totient is φ = 3588480.

The previous prime is 8455243. The next prime is 8455259. The reversal of 8455244 is 4425548.

It is a self number, because there is not a number n which added to its sum of digits gives 8455244.

It is not an unprimeable number, because it can be changed into a prime (8455241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34964 + ... + 35204.

It is an arithmetic number, because the mean of its divisors is an integer number (482790).

Almost surely, 2^8455244 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 8455244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8690220).

8455244 is an abundant number, since it is smaller than the sum of its proper divisors (8925196).

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

8455244 is a wasteful number, since it uses less digits than its factorization.

8455244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 429 counting only the distinct ones).

The product of its digits is 25600, while the sum is 32.

The square root of 8455244 is about 2907.7902262715. The cubic root of 8455244 is about 203.7239313255.

The spelling of 8455244 in words is "eight million, four hundred fifty-five thousand, two hundred forty-four".