4442978816 has 40 divisors (see below), whose sum is σ = 9263273184. Its totient is φ = 2124897280.

The previous prime is 4442978809. The next prime is 4442978831. The reversal of 4442978816 is 6188792444.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 176870 + ... + 200421.

Almost surely, 2^4442978816 is an apocalyptic number.

4442978816 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

4442978816 is an abundant number, since it is smaller than the sum of its proper divisors (4820294368).

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

4442978816 is an equidigital number, since it uses as much as digits as its factorization.

4442978816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377332 (or 377316 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 53.

The square root of 4442978816 is about 66655.6735469682. The cubic root of 4442978816 is about 1643.9606354891.

The spelling of 4442978816 in words is "four billion, four hundred forty-two million, nine hundred seventy-eight thousand, eight hundred sixteen".