144221324 has 48 divisors (see below), whose sum is σ = 290918880. Its totient is φ = 62000640.

The previous prime is 144221317. The next prime is 144221359. The reversal of 144221324 is 423122441.

It is a self number, because there is not a number n which added to its sum of digits gives 144221324.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59072 + ... + 61464.

It is an arithmetic number, because the mean of its divisors is an integer number (6060810).

Almost surely, 2^144221324 is an apocalyptic number.

It is an amenable number.

144221324 is an abundant number, since it is smaller than the sum of its proper divisors (146697556).

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

144221324 is a wasteful number, since it uses less digits than its factorization.

144221324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2488 counting only the distinct ones).

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

The square root of 144221324 is about 12009.2182926284. The cubic root of 144221324 is about 524.4166751644.

Adding to 144221324 its reverse (423122441), we get a palindrome (567343765).

The spelling of 144221324 in words is "one hundred forty-four million, two hundred twenty-one thousand, three hundred twenty-four".