1396378 has 8 divisors (see below), whose sum is σ = 2145780. Its totient is φ = 681120.

The previous prime is 1396331. The next prime is 1396387. The reversal of 1396378 is 8736931.

It can be written as a sum of positive squares in 2 ways, for example, as 1375929 + 20449 = 1173^2 + 143^2 .

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

It is an unprimeable number.

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, 8433 + ... + 8596.

2^1396378 is an apocalyptic number.

1396378 is a deficient number, since it is larger than the sum of its proper divisors (749402).

1396378 is a wasteful number, since it uses less digits than its factorization.

1396378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17072.

The product of its digits is 27216, while the sum is 37.

The square root of 1396378 is about 1181.6843910283. The cubic root of 1396378 is about 111.7723372878.

It can be divided in two parts, 13963 and 78, that added together give a palindrome (14041).

The spelling of 1396378 in words is "one million, three hundred ninety-six thousand, three hundred seventy-eight".