1373678378 has 16 divisors (see below), whose sum is σ = 2170152000. Its totient is φ = 650333952.

The previous prime is 1373678377. The next prime is 1373678419. The reversal of 1373678378 is 8738763731.

It is not an unprimeable number, because it can be changed into a prime (1373678377) 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, 68618 + ... + 86346.

It is an arithmetic number, because the mean of its divisors is an integer number (135634500).

Almost surely, 2^1373678378 is an apocalyptic number.

1373678378 is a deficient number, since it is larger than the sum of its proper divisors (796473622).

1373678378 is a wasteful number, since it uses less digits than its factorization.

1373678378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19789.

The product of its digits is 3556224, while the sum is 53.

The square root of 1373678378 is about 37063.1674037716. The cubic root of 1373678378 is about 1111.6336570134.

The spelling of 1373678378 in words is "one billion, three hundred seventy-three million, six hundred seventy-eight thousand, three hundred seventy-eight".