1394440808 has 16 divisors (see below), whose sum is σ = 2675381280. Its totient is φ = 681005808.

The previous prime is 1394440807. The next prime is 1394440811. The reversal of 1394440808 is 8080444931.

It is not an unprimeable number, because it can be changed into a prime (1394440807) 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, 2026460 + ... + 2027147.

It is an arithmetic number, because the mean of its divisors is an integer number (167211330).

Almost surely, 2^1394440808 is an apocalyptic number.

It is an amenable number.

1394440808 is a deficient number, since it is larger than the sum of its proper divisors (1280940472).

1394440808 is a wasteful number, since it uses less digits than its factorization.

1394440808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053656 (or 4053652 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 1394440808 is about 37342.2121465775. The cubic root of 1394440808 is about 1117.2062619842.

The spelling of 1394440808 in words is "one billion, three hundred ninety-four million, four hundred forty thousand, eight hundred eight".