4446446780 has 48 divisors (see below), whose sum is σ = 9390759840. Its totient is φ = 1768474368.

The previous prime is 4446446773. The next prime is 4446446791. The reversal of 4446446780 is 876446444.

It is a congruent number.

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, 4008866 + ... + 4009974.

It is an arithmetic number, because the mean of its divisors is an integer number (195640830).

Almost surely, 2^4446446780 is an apocalyptic number.

It is an amenable number.

4446446780 is an abundant number, since it is smaller than the sum of its proper divisors (4944313060).

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

4446446780 is a wasteful number, since it uses less digits than its factorization.

4446446780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078 (or 2076 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 47.

The square root of 4446446780 is about 66681.6824922707. The cubic root of 4446446780 is about 1644.3882550228.

The spelling of 4446446780 in words is "four billion, four hundred forty-six million, four hundred forty-six thousand, seven hundred eighty".