4478788446 has 16 divisors (see below), whose sum is σ = 9771902208. Its totient is φ = 1357208600.

The previous prime is 4478788441. The next prime is 4478788511. The reversal of 4478788446 is 6448878744.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4478788446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478788441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33930150 + ... + 33930281.

It is an arithmetic number, because the mean of its divisors is an integer number (610743888).

Almost surely, 2^4478788446 is an apocalyptic number.

4478788446 is an abundant number, since it is smaller than the sum of its proper divisors (5293113762).

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

4478788446 is a wasteful number, since it uses less digits than its factorization.

4478788446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67860447.

The product of its digits is 38535168, while the sum is 60.

The square root of 4478788446 is about 66923.7509857300. The cubic root of 4478788446 is about 1648.3655005821.

The spelling of 4478788446 in words is "four billion, four hundred seventy-eight million, seven hundred eighty-eight thousand, four hundred forty-six".