1228946 has 8 divisors (see below), whose sum is σ = 1848204. Its totient is φ = 612880.

The previous prime is 1228943. The next prime is 1228949. The reversal of 1228946 is 6498221.

It is an interprime number because it is at equal distance from previous prime (1228943) and next prime (1228949).

It can be written as a sum of positive squares in 2 ways, for example, as 1221025 + 7921 = 1105^2 + 89^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 1 + 2¹¹ + 2¹⁷ + 8³ + 9² + 4¹⁰ + 6⁶ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1228943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836 + ... + 1776.

2^1228946 is an apocalyptic number.

1228946 is a deficient number, since it is larger than the sum of its proper divisors (619258).

1228946 is an equidigital number, since it uses as much as digits as its factorization.

1228946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596.

The product of its digits is 6912, while the sum is 32.

The square root of 1228946 is about 1108.5783689032. The cubic root of 1228946 is about 107.1135139116.

The spelling of 1228946 in words is "one million, two hundred twenty-eight thousand, nine hundred forty-six".