1328138 has 16 divisors (see below), whose sum is σ = 2397120. Its totient is φ = 539136.

The previous prime is 1328111. The next prime is 1328143. The reversal of 1328138 is 8318231.

1328138 is nontrivially palindromic in base 5.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2231 + ... + 2762.

It is an arithmetic number, because the mean of its divisors is an integer number (149820).

2^1328138 is an apocalyptic number.

1328138 is a deficient number, since it is larger than the sum of its proper divisors (1068982).

1328138 is a wasteful number, since it uses less digits than its factorization.

1328138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5021.

The product of its digits is 1152, while the sum is 26.

The square root of 1328138 is about 1152.4486973397. The cubic root of 1328138 is about 109.9211004461.

The spelling of 1328138 in words is "one million, three hundred twenty-eight thousand, one hundred thirty-eight".