4446651920 has 80 divisors (see below), whose sum is σ = 11096812080. Its totient is φ = 1651064832.

The previous prime is 4446651917. The next prime is 4446651931. The reversal of 4446651920 is 291566444.

It can be written as a sum of positive squares in 8 ways, for example, as 110166016 + 4336485904 = 10496^2 + 65852^2 .

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, 76886 + ... + 121674.

It is an arithmetic number, because the mean of its divisors is an integer number (138710151).

Almost surely, 2^4446651920 is an apocalyptic number.

4446651920 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 4446651920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5548406040).

4446651920 is an abundant number, since it is smaller than the sum of its proper divisors (6650160160).

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

4446651920 is a wasteful number, since it uses less digits than its factorization.

4446651920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44892 (or 44886 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 4446651920 is about 66683.2206780686. The cubic root of 4446651920 is about 1644.4135429764.

The spelling of 4446651920 in words is "four billion, four hundred forty-six million, six hundred fifty-one thousand, nine hundred twenty".