1002228 has 24 divisors (see below), whose sum is σ = 2389632. Its totient is φ = 326784.

The previous prime is 1002227. The next prime is 1002241. The reversal of 1002228 is 8222001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325 + ... + 1452.

It is an arithmetic number, because the mean of its divisors is an integer number (99568).

2^1002228 is an apocalyptic number.

It is an amenable number.

1002228 is an abundant number, since it is smaller than the sum of its proper divisors (1387404).

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

1002228 is a wasteful number, since it uses less digits than its factorization.

1002228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1002228 is about 1001.1133801923. The cubic root of 1002228 is about 100.0742115795.

Adding to 1002228 its reverse (8222001), we get a palindrome (9224229).

The spelling of 1002228 in words is "one million, two thousand, two hundred twenty-eight".