220402244 has 6 divisors (see below), whose sum is σ = 385703934. Its totient is φ = 110201120.

The previous prime is 220402213. The next prime is 220402253. The reversal of 220402244 is 442204022.

It can be written as a sum of positive squares in only one way, i.e., 219928900 + 473344 = 14830^2 + 688^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27550277 + ... + 27550284.

It is an arithmetic number, because the mean of its divisors is an integer number (64283989).

Almost surely, 2^220402244 is an apocalyptic number.

It is an amenable number.

220402244 is a deficient number, since it is larger than the sum of its proper divisors (165301690).

220402244 is a wasteful number, since it uses less digits than its factorization.

220402244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55100565 (or 55100563 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 220402244 is about 14845.9504242740. The cubic root of 220402244 is about 604.0487695076.

Adding to 220402244 its reverse (442204022), we get a palindrome (662606266).

The spelling of 220402244 in words is "two hundred twenty million, four hundred two thousand, two hundred forty-four".