1328424 has 16 divisors (see below), whose sum is σ = 3321120. Its totient is φ = 442800.

The previous prime is 1328417. The next prime is 1328447. The reversal of 1328424 is 4248231.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 55351 = 1328424 / (1 + 3 + 2 + 8 + 4 + 2 + 4).

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

It is a junction number, because it is equal to n+sod(n) for n = 1328394 and 1328403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27652 + ... + 27699.

It is an arithmetic number, because the mean of its divisors is an integer number (207570).

2^1328424 is an apocalyptic number.

It is an amenable number.

1328424 is an abundant number, since it is smaller than the sum of its proper divisors (1992696).

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

1328424 is a wasteful number, since it uses less digits than its factorization.

1328424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55360 (or 55356 counting only the distinct ones).

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

The square root of 1328424 is about 1152.5727742750. The cubic root of 1328424 is about 109.9289899823.

The spelling of 1328424 in words is "one million, three hundred twenty-eight thousand, four hundred twenty-four".