1328378 has 8 divisors (see below), whose sum is σ = 1997460. Its totient is φ = 662560.

The previous prime is 1328357. The next prime is 1328387. The reversal of 1328378 is 8738231.

It can be written as a sum of positive squares in 2 ways, for example, as 1315609 + 12769 = 1147^2 + 113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1328378² = 3529176221768, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1208 + ... + 2028.

2^1328378 is an apocalyptic number.

1328378 is a deficient number, since it is larger than the sum of its proper divisors (669082).

1328378 is an equidigital number, since it uses as much as digits as its factorization.

1328378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632.

The product of its digits is 8064, while the sum is 32.

The square root of 1328378 is about 1152.5528187463. The cubic root of 1328378 is about 109.9277211124.

The spelling of 1328378 in words is "one million, three hundred twenty-eight thousand, three hundred seventy-eight".