220488649 has 8 divisors (see below), whose sum is σ = 235426752. Its totient is φ = 205996560.

The previous prime is 220488643. The next prime is 220488659. The reversal of 220488649 is 946884022.

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

It is a cyclic number.

It is not a de Polignac number, because 220488649 - 2³ = 220488641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220488641) 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, 110482 + ... + 112459.

It is an arithmetic number, because the mean of its divisors is an integer number (29428344).

Almost surely, 2^220488649 is an apocalyptic number.

It is an amenable number.

220488649 is a deficient number, since it is larger than the sum of its proper divisors (14938103).

220488649 is a wasteful number, since it uses less digits than its factorization.

220488649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223007.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 220488649 is about 14848.8601919474. The cubic root of 220488649 is about 604.1276949215.

The spelling of 220488649 in words is "two hundred twenty million, four hundred eighty-eight thousand, six hundred forty-nine".