446989530 has 64 divisors (see below), whose sum is σ = 1160490240. Its totient is φ = 109533696.

The previous prime is 446989523. The next prime is 446989553. The reversal of 446989530 is 35989644.

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 446989530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88411 + ... + 93329.

It is an arithmetic number, because the mean of its divisors is an integer number (18132660).

Almost surely, 2^446989530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 446989530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580245120).

446989530 is an abundant number, since it is smaller than the sum of its proper divisors (713500710).

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

446989530 is a wasteful number, since it uses less digits than its factorization.

446989530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 446989530 is about 21142.1269034125. The cubic root of 446989530 is about 764.5967544577.

The spelling of 446989530 in words is "four hundred forty-six million, nine hundred eighty-nine thousand, five hundred thirty".