4446949920 has 288 divisors, whose sum is σ = 16677638208. Its totient is φ = 992581632.

The previous prime is 4446949919. The next prime is 4446949933. The reversal of 4446949920 is 299496444.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1009162 + ... + 1013558.

It is an arithmetic number, because the mean of its divisors is an integer number (57908466).

Almost surely, 2^4446949920 is an apocalyptic number.

4446949920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4446949920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8338819104).

4446949920 is an abundant number, since it is smaller than the sum of its proper divisors (12230688288).

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

4446949920 is a wasteful number, since it uses less digits than its factorization.

4446949920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472 (or 4457 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The square root of 4446949920 is about 66685.4550857981. The cubic root of 4446949920 is about 1644.4502765532.

The spelling of 4446949920 in words is "four billion, four hundred forty-six million, nine hundred forty-nine thousand, nine hundred twenty".