1328142 has 32 divisors (see below), whose sum is σ = 2916000. Its totient is φ = 401408.

The previous prime is 1328111. The next prime is 1328143. The reversal of 1328142 is 2418231.

It is a super-2 number, since 2×1328142² = 3527922344328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2734 + ... + 3182.

It is an arithmetic number, because the mean of its divisors is an integer number (91125).

2^1328142 is an apocalyptic number.

1328142 is an abundant number, since it is smaller than the sum of its proper divisors (1587858).

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

1328142 is a wasteful number, since it uses less digits than its factorization.

1328142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500.

The product of its digits is 384, while the sum is 21.

The square root of 1328142 is about 1152.4504327736. The cubic root of 1328142 is about 109.9212107971.

The spelling of 1328142 in words is "one million, three hundred twenty-eight thousand, one hundred forty-two".