1373378379 has 4 divisors (see below), whose sum is σ = 1831171176. Its totient is φ = 915585584.

The previous prime is 1373378299. The next prime is 1373378417. The reversal of 1373378379 is 9738733731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1373378379 - 2⁹ = 1373377867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1373578379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228896394 + ... + 228896399.

It is an arithmetic number, because the mean of its divisors is an integer number (457792794).

Almost surely, 2^1373378379 is an apocalyptic number.

1373378379 is a deficient number, since it is larger than the sum of its proper divisors (457792797).

1373378379 is an equidigital number, since it uses as much as digits as its factorization.

1373378379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457792796.

The product of its digits is 2000376, while the sum is 51.

The square root of 1373378379 is about 37059.1200516148. The cubic root of 1373378379 is about 1111.5527275249.

The spelling of 1373378379 in words is "one billion, three hundred seventy-three million, three hundred seventy-eight thousand, three hundred seventy-nine".