1224416 has 24 divisors (see below), whose sum is σ = 2444904. Its totient is φ = 603520.

The previous prime is 1224413. The next prime is 1224437. The reversal of 1224416 is 6144221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2426 + ... + 2886.

It is an arithmetic number, because the mean of its divisors is an integer number (101871).

2^1224416 is an apocalyptic number.

1224416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1224416 is a deficient number, since it is larger than the sum of its proper divisors (1220488).

1224416 is an equidigital number, since it uses as much as digits as its factorization.

1224416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 546 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 1224416 is about 1106.5333253002. The cubic root of 1224416 is about 106.9817420153.

Adding to 1224416 its reverse (6144221), we get a palindrome (7368637).

The spelling of 1224416 in words is "one million, two hundred twenty-four thousand, four hundred sixteen".