1478239984 has 80 divisors (see below), whose sum is σ = 3182296320. Its totient is φ = 660787200.

The previous prime is 1478239979. The next prime is 1478239993. The reversal of 1478239984 is 4899328741.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3085857 + ... + 3086335.

It is an arithmetic number, because the mean of its divisors is an integer number (39778704).

Almost surely, 2^1478239984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1478239984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1591148160).

1478239984 is an abundant number, since it is smaller than the sum of its proper divisors (1704056336).

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

1478239984 is a wasteful number, since it uses less digits than its factorization.

1478239984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 932 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 1478239984 is about 38447.8865999160. The cubic root of 1478239984 is about 1139.1519249099.

The spelling of 1478239984 in words is "one billion, four hundred seventy-eight million, two hundred thirty-nine thousand, nine hundred eighty-four".