1228998 has 16 divisors (see below), whose sum is σ = 2602800. Its totient is φ = 385536.

The previous prime is 1228993. The next prime is 1229021. The reversal of 1228998 is 8998221.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228993) 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, 5923 + ... + 6126.

It is an arithmetic number, because the mean of its divisors is an integer number (162675).

2^1228998 is an apocalyptic number.

1228998 is an abundant number, since it is smaller than the sum of its proper divisors (1373802).

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

1228998 is a wasteful number, since it uses less digits than its factorization.

1228998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12071.

The product of its digits is 20736, while the sum is 39.

The square root of 1228998 is about 1108.6018221165. The cubic root of 1228998 is about 107.1150246436.

The spelling of 1228998 in words is "one million, two hundred twenty-eight thousand, nine hundred ninety-eight".