220598449 has 4 divisors (see below), whose sum is σ = 227714560. Its totient is φ = 213482340.

The previous prime is 220598431. The next prime is 220598453. The reversal of 220598449 is 944895022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220598449 - 2⁷ = 220598321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220598429) 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 3 ways as a sum of consecutive naturals, for example, 3558009 + ... + 3558070.

It is an arithmetic number, because the mean of its divisors is an integer number (56928640).

Almost surely, 2^220598449 is an apocalyptic number.

It is an amenable number.

220598449 is a deficient number, since it is larger than the sum of its proper divisors (7116111).

220598449 is an equidigital number, since it uses as much as digits as its factorization.

220598449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7116110.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 220598449 is about 14852.5569852467. The cubic root of 220598449 is about 604.2279604201.

The spelling of 220598449 in words is "two hundred twenty million, five hundred ninety-eight thousand, four hundred forty-nine".