1478238979 has 12 divisors (see below), whose sum is σ = 1702953264. Its totient is φ = 1256989104.

The previous prime is 1478238967. The next prime is 1478238991. The reversal of 1478238979 is 9798328741.

It is an interprime number because it is at equal distance from previous prime (1478238967) and next prime (1478238991).

It is not a de Polignac number, because 1478238979 - 2⁷ = 1478238851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1478238959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106357 + ... + 119449.

It is an arithmetic number, because the mean of its divisors is an integer number (141912772).

Almost surely, 2^1478238979 is an apocalyptic number.

1478238979 is a deficient number, since it is larger than the sum of its proper divisors (224714285).

1478238979 is an equidigital number, since it uses as much as digits as its factorization.

1478238979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13354 (or 13227 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 58.

The square root of 1478238979 is about 38447.8735302747. The cubic root of 1478238979 is about 1139.1516667543.

The spelling of 1478238979 in words is "one billion, four hundred seventy-eight million, two hundred thirty-eight thousand, nine hundred seventy-nine".