1478438464 has 28 divisors (see below), whose sum is σ = 2940367500. Its totient is φ = 737558528.

The previous prime is 1478438449. The next prime is 1478438477. The reversal of 1478438464 is 4648348741.

It can be written as a sum of positive squares in 2 ways, for example, as 676416064 + 802022400 = 26008^2 + 28320^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3012 + ... + 54460.

It is an arithmetic number, because the mean of its divisors is an integer number (105013125).

Almost surely, 2^1478438464 is an apocalyptic number.

It is an amenable number.

1478438464 is a deficient number, since it is larger than the sum of its proper divisors (1461929036).

1478438464 is an equidigital number, since it uses as much as digits as its factorization.

1478438464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51910 (or 51900 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 49.

The square root of 1478438464 is about 38450.4676694575. The cubic root of 1478438464 is about 1139.2029064280.

The spelling of 1478438464 in words is "one billion, four hundred seventy-eight million, four hundred thirty-eight thousand, four hundred sixty-four".