1224384 has 56 divisors (see below), whose sum is σ = 3706368. Its totient is φ = 349440.

The previous prime is 1224347. The next prime is 1224389. The reversal of 1224384 is 4834221.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1224389) 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, 889 + ... + 1799.

2^1224384 is an apocalyptic number.

1224384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1853184).

1224384 is an abundant number, since it is smaller than the sum of its proper divisors (2481984).

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

1224384 is an equidigital number, since it uses as much as digits as its factorization.

1224384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 923 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 1224384 is about 1106.5188656322. The cubic root of 1224384 is about 106.9808100212.

The spelling of 1224384 in words is "one million, two hundred twenty-four thousand, three hundred eighty-four".