8227440 has 160 divisors (see below), whose sum is σ = 30623040. Its totient is φ = 2018304.

The previous prime is 8227423. The next prime is 8227451. The reversal of 8227440 is 447228.

8227440 is digitally balanced in base 4 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27934 + ... + 28226.

It is an arithmetic number, because the mean of its divisors is an integer number (191394).

Almost surely, 2^8227440 is an apocalyptic number.

8227440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8227440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15311520).

8227440 is an abundant number, since it is smaller than the sum of its proper divisors (22395600).

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

8227440 is a wasteful number, since it uses less digits than its factorization.

8227440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 8227440 is about 2868.3514429024. The cubic root of 8227440 is about 201.8776503149.

The spelling of 8227440 in words is "eight million, two hundred twenty-seven thousand, four hundred forty".