1224881 has 8 divisors (see below), whose sum is σ = 1407744. Its totient is φ = 1044000.

The previous prime is 1224869. The next prime is 1224887. The reversal of 1224881 is 1884221.

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

It is a cyclic number.

It is not a de Polignac number, because 1224881 - 2¹⁰ = 1223857 is a prime.

It is a super-2 number, since 2×1224881² = 3000666928322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224887) 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, 1256 + ... + 2006.

It is an arithmetic number, because the mean of its divisors is an integer number (175968).

2^1224881 is an apocalyptic number.

It is an amenable number.

1224881 is a deficient number, since it is larger than the sum of its proper divisors (182863).

1224881 is an equidigital number, since it uses as much as digits as its factorization.

1224881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its digits is 1024, while the sum is 26.

The square root of 1224881 is about 1106.7434210331. The cubic root of 1224881 is about 106.9952832229.

The spelling of 1224881 in words is "one million, two hundred twenty-four thousand, eight hundred eighty-one".