1328278 has 16 divisors (see below), whose sum is σ = 2411424. Its totient is φ = 535680.

The previous prime is 1328269. The next prime is 1328279. The reversal of 1328278 is 8728231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2553 + ... + 3028.

It is an arithmetic number, because the mean of its divisors is an integer number (150714).

2^1328278 is an apocalyptic number.

1328278 is a deficient number, since it is larger than the sum of its proper divisors (1083146).

1328278 is a wasteful number, since it uses less digits than its factorization.

1328278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607.

The product of its digits is 5376, while the sum is 31.

The square root of 1328278 is about 1152.5094359700. The cubic root of 1328278 is about 109.9249625984.

The spelling of 1328278 in words is "one million, three hundred twenty-eight thousand, two hundred seventy-eight".