1378404914 has 16 divisors (see below), whose sum is σ = 2206476288. Its totient is φ = 643551552.

The previous prime is 1378404899. The next prime is 1378404917. The reversal of 1378404914 is 4194048731.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1378404917) 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, 155294 + ... + 163929.

It is an arithmetic number, because the mean of its divisors is an integer number (137904768).

Almost surely, 2^1378404914 is an apocalyptic number.

1378404914 is a deficient number, since it is larger than the sum of its proper divisors (828071374).

1378404914 is a wasteful number, since it uses less digits than its factorization.

1378404914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319369.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 1378404914 is about 37126.8758987341. The cubic root of 1378404914 is about 1112.9071627351.

The spelling of 1378404914 in words is "one billion, three hundred seventy-eight million, four hundred four thousand, nine hundred fourteen".