220498649 has 8 divisors (see below), whose sum is σ = 252091200. Its totient is φ = 188929296.

The previous prime is 220498643. The next prime is 220498669. The reversal of 220498649 is 946894022.

It is a happy number.

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 220498649 - 2⁴ = 220498633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (220498643) 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, 26822 + ... + 34064.

It is an arithmetic number, because the mean of its divisors is an integer number (31511400).

Almost surely, 2^220498649 is an apocalyptic number.

It is an amenable number.

220498649 is a deficient number, since it is larger than the sum of its proper divisors (31592551).

220498649 is an equidigital number, since it uses as much as digits as its factorization.

220498649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11599.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 220498649 is about 14849.1969143116. The cubic root of 220498649 is about 604.1368279474.

The spelling of 220498649 in words is "two hundred twenty million, four hundred ninety-eight thousand, six hundred forty-nine".