1478339868 has 12 divisors (see below), whose sum is σ = 3449459720. Its totient is φ = 492779952.

The previous prime is 1478339867. The next prime is 1478339869. The reversal of 1478339868 is 8689338741.

It is an interprime number because it is at equal distance from previous prime (1478339867) and next prime (1478339869).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478339861) 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, 61597483 + ... + 61597506.

Almost surely, 2^1478339868 is an apocalyptic number.

It is an amenable number.

1478339868 is an abundant number, since it is smaller than the sum of its proper divisors (1971119852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1478339868 is a wasteful number, since it uses less digits than its factorization.

1478339868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123194996 (or 123194994 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The square root of 1478339868 is about 38449.1855310356. The cubic root of 1478339868 is about 1139.1775816570.

The spelling of 1478339868 in words is "one billion, four hundred seventy-eight million, three hundred thirty-nine thousand, eight hundred sixty-eight".