446990990 has 8 divisors (see below), whose sum is σ = 804583800. Its totient is φ = 178796392.

The previous prime is 446990989. The next prime is 446991011. The reversal of 446990990 is 99099644.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 22349540 + ... + 22349559.

It is an arithmetic number, because the mean of its divisors is an integer number (100572975).

Almost surely, 2^446990990 is an apocalyptic number.

446990990 is a deficient number, since it is larger than the sum of its proper divisors (357592810).

446990990 is a wasteful number, since it uses less digits than its factorization.

446990990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44699106.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 446990990 is about 21142.1614316039. The cubic root of 446990990 is about 764.5975869232.

It can be divided in two parts, 4469 and 90990, that added together give a palindrome (95459).

The spelling of 446990990 in words is "four hundred forty-six million, nine hundred ninety thousand, nine hundred ninety".