219980242 has 8 divisors (see below), whose sum is σ = 331680636. Its totient is φ = 109420032.

The previous prime is 219980237. The next prime is 219980251. The reversal of 219980242 is 242089912.

It can be written as a sum of positive squares in 2 ways, for example, as 214593201 + 5387041 = 14649^2 + 2321^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 284563 + ... + 285334.

Almost surely, 2^219980242 is an apocalyptic number.

219980242 is a deficient number, since it is larger than the sum of its proper divisors (111700394).

219980242 is a wasteful number, since it uses less digits than its factorization.

219980242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570092.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 219980242 is about 14831.7309171924. The cubic root of 219980242 is about 603.6630011226.

The spelling of 219980242 in words is "two hundred nineteen million, nine hundred eighty thousand, two hundred forty-two".