1228284 has 60 divisors (see below), whose sum is σ = 3415104. Its totient is φ = 383616.

The previous prime is 1228277. The next prime is 1228291. The reversal of 1228284 is 4828221.

1228284 = 21³ + 22³ + ... + 47³.

It is an interprime number because it is at equal distance from previous prime (1228277) and next prime (1228291).

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

Its product of digits (2048) is a multiple of the sum of its prime factors (256).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5397 + ... + 5619.

2^1228284 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 1228284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707552).

1228284 is an abundant number, since it is smaller than the sum of its proper divisors (2186820).

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

1228284 is a wasteful number, since it uses less digits than its factorization.

1228284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 245 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 1228284 is about 1108.2797480781. The cubic root of 1228284 is about 107.0942774053.

The spelling of 1228284 in words is "one million, two hundred twenty-eight thousand, two hundred eighty-four".