220866441 has 8 divisors (see below), whose sum is σ = 299480160. Its totient is φ = 144748512.

The previous prime is 220866439. The next prime is 220866461. The reversal of 220866441 is 144668022.

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

It is not a de Polignac number, because 220866441 - 2¹ = 220866439 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220866461) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 623740 + ... + 624093.

It is an arithmetic number, because the mean of its divisors is an integer number (37435020).

Almost surely, 2^220866441 is an apocalyptic number.

It is an amenable number.

220866441 is a deficient number, since it is larger than the sum of its proper divisors (78613719).

220866441 is a wasteful number, since it uses less digits than its factorization.

220866441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247895.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 220866441 is about 14861.5759931442. The cubic root of 220866441 is about 604.4725416674.

The spelling of 220866441 in words is "two hundred twenty million, eight hundred sixty-six thousand, four hundred forty-one".