144223268 has 30 divisors (see below), whose sum is σ = 294457926. Its totient is φ = 61805856.

The previous prime is 144223249. The next prime is 144223273. The reversal of 144223268 is 862322441.

It can be written as a sum of positive squares in only one way, i.e., 114105124 + 30118144 = 10682^2 + 5488^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2096 + ... + 17112.

Almost surely, 2^144223268 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 144223268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147228963).

144223268 is an abundant number, since it is smaller than the sum of its proper divisors (150234658).

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

144223268 is an equidigital number, since it uses as much as digits as its factorization.

144223268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15049 (or 15026 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 144223268 is about 12009.2992301799. The cubic root of 144223268 is about 524.4190314074.

The spelling of 144223268 in words is "one hundred forty-four million, two hundred twenty-three thousand, two hundred sixty-eight".