1428424 has 32 divisors (see below), whose sum is σ = 2851200. Its totient is φ = 669760.

The previous prime is 1428419. The next prime is 1428431. The reversal of 1428424 is 4248241.

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

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 7 ways as a sum of consecutive naturals, for example, 10839 + ... + 10969.

It is an arithmetic number, because the mean of its divisors is an integer number (89100).

2^1428424 is an apocalyptic number.

It is an amenable number.

1428424 is a deficient number, since it is larger than the sum of its proper divisors (1422776).

1428424 is a wasteful number, since it uses less digits than its factorization.

1428424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 209 counting only the distinct ones).

The product of its digits is 2048, while the sum is 25.

The square root of 1428424 is about 1195.1669339469. The cubic root of 1428424 is about 112.6209136184.

The spelling of 1428424 in words is "one million, four hundred twenty-eight thousand, four hundred twenty-four".