220285744 has 40 divisors (see below), whose sum is σ = 490638240. Its totient is φ = 93854208.

The previous prime is 220285729. The next prime is 220285787. The reversal of 220285744 is 447582022.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13692 + ... + 25060.

It is an arithmetic number, because the mean of its divisors is an integer number (12265956).

Almost surely, 2^220285744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220285744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245319120).

220285744 is an abundant number, since it is smaller than the sum of its proper divisors (270352496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220285744 is a wasteful number, since it uses less digits than its factorization.

220285744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11557 (or 11551 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 220285744 is about 14842.0262767588. The cubic root of 220285744 is about 603.9423215831.

It can be divided in two parts, 22028 and 5744, that added together give a palindrome (27772).

The spelling of 220285744 in words is "two hundred twenty million, two hundred eighty-five thousand, seven hundred forty-four".