1224894 has 32 divisors (see below), whose sum is σ = 2722176. Its totient is φ = 364320.

The previous prime is 1224893. The next prime is 1224913. The reversal of 1224894 is 4984221.

It is a super-2 number, since 2×1224894² = 3000730622472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4284 + ... + 4560.

It is an arithmetic number, because the mean of its divisors is an integer number (85068).

2^1224894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361088).

1224894 is an abundant number, since it is smaller than the sum of its proper divisors (1497282).

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

1224894 is a wasteful number, since it uses less digits than its factorization.

1224894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360.

The product of its digits is 4608, while the sum is 30.

The square root of 1224894 is about 1106.7492941041. The cubic root of 1224894 is about 106.9956617451.

The spelling of 1224894 in words is "one million, two hundred twenty-four thousand, eight hundred ninety-four".