1122406 has 8 divisors (see below), whose sum is σ = 1772280. Its totient is φ = 531648.

The previous prime is 1122397. The next prime is 1122419. The reversal of 1122406 is 6042211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1122406.

It is a congruent number.

It is an unprimeable number.

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, 14731 + ... + 14806.

It is an arithmetic number, because the mean of its divisors is an integer number (221535).

2^1122406 is an apocalyptic number.

1122406 is a deficient number, since it is larger than the sum of its proper divisors (649874).

1122406 is a wasteful number, since it uses less digits than its factorization.

1122406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29558.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1122406 is about 1059.4366427493. The cubic root of 1122406 is about 103.9241927840.

Adding to 1122406 its reverse (6042211), we get a palindrome (7164617).

The spelling of 1122406 in words is "one million, one hundred twenty-two thousand, four hundred six".