220447000 has 32 divisors (see below), whose sum is σ = 515848320. Its totient is φ = 88178400.

The previous prime is 220446979. The next prime is 220447001. The reversal of 220447000 is 744022.

220447000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220447001) by changing a digit.

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, 109224 + ... + 111223.

It is an arithmetic number, because the mean of its divisors is an integer number (16120260).

Almost surely, 2^220447000 is an apocalyptic number.

220447000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220447000 is an abundant number, since it is smaller than the sum of its proper divisors (295401320).

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

220447000 is a wasteful number, since it uses less digits than its factorization.

220447000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220468 (or 220454 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 220447000 is about 14847.4576948379. The cubic root of 220447000 is about 604.0896538116.

The spelling of 220447000 in words is "two hundred twenty million, four hundred forty-seven thousand".