1408224 has 24 divisors (see below), whose sum is σ = 3696840. Its totient is φ = 469376.

The previous prime is 1408219. The next prime is 1408241. The reversal of 1408224 is 4228041.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1408224.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7239 + ... + 7430.

It is an arithmetic number, because the mean of its divisors is an integer number (154035).

2^1408224 is an apocalyptic number.

It is an amenable number.

1408224 is an abundant number, since it is smaller than the sum of its proper divisors (2288616).

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

1408224 is a wasteful number, since it uses less digits than its factorization.

1408224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14682 (or 14674 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1408224 is about 1186.6861421623. The cubic root of 1408224 is about 112.0875166308.

The spelling of 1408224 in words is "one million, four hundred eight thousand, two hundred twenty-four".