447651890 has 32 divisors (see below), whose sum is σ = 927932544. Its totient is φ = 152305920.

The previous prime is 447651889. The next prime is 447651929. The reversal of 447651890 is 98156744.

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 15 ways as a sum of consecutive naturals, for example, 15239 + ... + 33578.

It is an arithmetic number, because the mean of its divisors is an integer number (28997892).

Almost surely, 2^447651890 is an apocalyptic number.

447651890 is an abundant number, since it is smaller than the sum of its proper divisors (480280654).

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

447651890 is a wasteful number, since it uses less digits than its factorization.

447651890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48962.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 447651890 is about 21157.7855646568. The cubic root of 447651890 is about 764.9742341130.

The spelling of 447651890 in words is "four hundred forty-seven million, six hundred fifty-one thousand, eight hundred ninety".