1378196 has 18 divisors (see below), whose sum is σ = 2518110. Its totient is φ = 659232.

The previous prime is 1378189. The next prime is 1378199. The reversal of 1378196 is 6918731.

It can be written as a sum of positive squares in 3 ways, for example, as 448900 + 929296 = 670^2 + 964^2 .

It is a super-3 number, since 3×1378196³ = 7853336563833820608, which contains 333 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12590 + ... + 12698.

It is an arithmetic number, because the mean of its divisors is an integer number (139895).

2^1378196 is an apocalyptic number.

It is an amenable number.

1378196 is a deficient number, since it is larger than the sum of its proper divisors (1139914).

1378196 is a wasteful number, since it uses less digits than its factorization.

1378196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 140 counting only the distinct ones).

The product of its digits is 9072, while the sum is 35.

The square root of 1378196 is about 1173.9659279553. The cubic root of 1378196 is about 111.2850935030.

The spelling of 1378196 in words is "one million, three hundred seventy-eight thousand, one hundred ninety-six".