1122418 has 16 divisors (see below), whose sum is σ = 1853856. Its totient is φ = 505440.

The previous prime is 1122397. The next prime is 1122419. The reversal of 1122418 is 8142211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1122395 and 1122404.

It is not an unprimeable number, because it can be changed into a prime (1122419) 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 7 ways as a sum of consecutive naturals, for example, 3430 + ... + 3742.

It is an arithmetic number, because the mean of its divisors is an integer number (115866).

2^1122418 is an apocalyptic number.

1122418 is a deficient number, since it is larger than the sum of its proper divisors (731438).

1122418 is a wasteful number, since it uses less digits than its factorization.

1122418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its digits is 128, while the sum is 19.

The square root of 1122418 is about 1059.4423061215. The cubic root of 1122418 is about 103.9245631449.

Adding to 1122418 its reverse (8142211), we get a palindrome (9264629).

It can be divided in two parts, 1122 and 418, that multiplied together give a triangular number (468996 = T₉₆₈).

The spelling of 1122418 in words is "one million, one hundred twenty-two thousand, four hundred eighteen".