220038242 has 18 divisors (see below), whose sum is σ = 351183747. Its totient is φ = 103379584.

The previous prime is 220038241. The next prime is 220038271. The reversal of 220038242 is 242830022.

It can be written as a sum of positive squares in 5 ways, for example, as 44502241 + 175536001 = 6671^2 + 13249^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10489.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220038241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 356318 + ... + 356934.

Almost surely, 2^220038242 is an apocalyptic number.

220038242 is a deficient number, since it is larger than the sum of its proper divisors (131145505).

220038242 is an frugal number, since it uses more digits than its factorization.

220038242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 220038242 is about 14833.6860557314. The cubic root of 220038242 is about 603.7160503981.

Adding to 220038242 its reverse (242830022), we get a palindrome (462868264).

The spelling of 220038242 in words is "two hundred twenty million, thirty-eight thousand, two hundred forty-two".