1396478318 has 8 divisors (see below), whose sum is σ = 2115457560. Its totient is φ = 691325800.

The previous prime is 1396478269. The next prime is 1396478323. The reversal of 1396478318 is 8138746931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3456428 + ... + 3456831.

It is an arithmetic number, because the mean of its divisors is an integer number (264432195).

Almost surely, 2^1396478318 is an apocalyptic number.

1396478318 is a deficient number, since it is larger than the sum of its proper divisors (718979242).

1396478318 is a wasteful number, since it uses less digits than its factorization.

1396478318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913362.

The product of its digits is 870912, while the sum is 50.

The square root of 1396478318 is about 37369.4837802183. The cubic root of 1396478318 is about 1117.7501385745.

The spelling of 1396478318 in words is "one billion, three hundred ninety-six million, four hundred seventy-eight thousand, three hundred eighteen".