1478715280 has 80 divisors (see below), whose sum is σ = 4135985280. Its totient is φ = 480301056.

The previous prime is 1478715263. The next prime is 1478715281. The reversal of 1478715280 is 825178741.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1478715281) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58849 + ... + 80128.

It is an arithmetic number, because the mean of its divisors is an integer number (51699816).

Almost surely, 2^1478715280 is an apocalyptic number.

1478715280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1478715280 is an abundant number, since it is smaller than the sum of its proper divisors (2657270000).

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

1478715280 is a wasteful number, since it uses less digits than its factorization.

1478715280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139016 (or 139010 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 1478715280 is about 38454.0671451018. The cubic root of 1478715280 is about 1139.2740016906.

The spelling of 1478715280 in words is "one billion, four hundred seventy-eight million, seven hundred fifteen thousand, two hundred eighty".