1128424 has 16 divisors (see below), whose sum is σ = 2308320. Its totient is φ = 512880.

The previous prime is 1128397. The next prime is 1128427. The reversal of 1128424 is 4248211.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 = 1128395 and 1128404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128427) by changing a digit.

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, 6324 + ... + 6499.

It is an arithmetic number, because the mean of its divisors is an integer number (144270).

2^1128424 is an apocalyptic number.

It is an amenable number.

1128424 is an abundant number, since it is smaller than the sum of its proper divisors (1179896).

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

1128424 is a wasteful number, since it uses less digits than its factorization.

1128424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12840 (or 12836 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

The square root of 1128424 is about 1062.2730345820. The cubic root of 1128424 is about 104.1095984651.

The spelling of 1128424 in words is "one million, one hundred twenty-eight thousand, four hundred twenty-four".