446439648 has 48 divisors (see below), whose sum is σ = 1178721936. Its totient is φ = 147947520.

The previous prime is 446439619. The next prime is 446439661. The reversal of 446439648 is 846934644.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 446439597 and 446439606.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3168 + ... + 30048.

It is an arithmetic number, because the mean of its divisors is an integer number (24556707).

Almost surely, 2^446439648 is an apocalyptic number.

446439648 is a gapful number since it is divisible by the number (48) 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 446439648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589360968).

446439648 is an abundant number, since it is smaller than the sum of its proper divisors (732282288).

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

446439648 is a wasteful number, since it uses less digits than its factorization.

446439648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27067 (or 27059 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 48.

The square root of 446439648 is about 21129.1184861082. The cubic root of 446439648 is about 764.2830927361.

The spelling of 446439648 in words is "four hundred forty-six million, four hundred thirty-nine thousand, six hundred forty-eight".