1378996 has 6 divisors (see below), whose sum is σ = 2413250. Its totient is φ = 689496.

The previous prime is 1378969. The next prime is 1378997. The reversal of 1378996 is 6998731.

It can be written as a sum of positive squares in only one way, i.e., 1060900 + 318096 = 1030^2 + 564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172371 + ... + 172378.

2^1378996 is an apocalyptic number.

It is an amenable number.

1378996 is a deficient number, since it is larger than the sum of its proper divisors (1034254).

1378996 is a wasteful number, since it uses less digits than its factorization.

1378996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344753 (or 344751 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 1378996 is about 1174.3066039157. The cubic root of 1378996 is about 111.3066218522.

The spelling of 1378996 in words is "one million, three hundred seventy-eight thousand, nine hundred ninety-six".