4678839440 has 80 divisors (see below), whose sum is σ = 12188059200. Its totient is φ = 1655400960.

The previous prime is 4678839427. The next prime is 4678839463. The reversal of 4678839440 is 449388764.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39290 + ... + 104409.

It is an arithmetic number, because the mean of its divisors is an integer number (152350740).

Almost surely, 2^4678839440 is an apocalyptic number.

4678839440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4678839440 is an abundant number, since it is smaller than the sum of its proper divisors (7509219760).

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

4678839440 is a wasteful number, since it uses less digits than its factorization.

4678839440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143760 (or 143754 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The square root of 4678839440 is about 68402.0426595581. The cubic root of 4678839440 is about 1672.5510439235.

The spelling of 4678839440 in words is "four billion, six hundred seventy-eight million, eight hundred thirty-nine thousand, four hundred forty".