445872220 has 24 divisors (see below), whose sum is σ = 936797904. Its totient is φ = 178260096.

The previous prime is 445872197. The next prime is 445872223. The reversal of 445872220 is 22278544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445872223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48427 + ... + 56893.

It is an arithmetic number, because the mean of its divisors is an integer number (39033246).

Almost surely, 2^445872220 is an apocalyptic number.

It is an amenable number.

445872220 is an abundant number, since it is smaller than the sum of its proper divisors (490925684).

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

445872220 is a wasteful number, since it uses less digits than its factorization.

445872220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11109 (or 11107 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 445872220 is about 21115.6865860431. The cubic root of 445872220 is about 763.9591523532.

The spelling of 445872220 in words is "four hundred forty-five million, eight hundred seventy-two thousand, two hundred twenty".