144322244 has 24 divisors (see below), whose sum is σ = 277972128. Its totient is φ = 65018240.

The previous prime is 144322229. The next prime is 144322247. The reversal of 144322244 is 442223441.

It is a happy number.

It is a super-2 number, since 2×144322244² = 41657820226391072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144322247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9542 + ... + 19485.

It is an arithmetic number, because the mean of its divisors is an integer number (11582172).

Almost surely, 2^144322244 is an apocalyptic number.

It is an amenable number.

144322244 is a deficient number, since it is larger than the sum of its proper divisors (133649884).

144322244 is a wasteful number, since it uses less digits than its factorization.

144322244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29155 (or 29153 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 144322244 is about 12013.4193300659. The cubic root of 144322244 is about 524.5389682010.

Adding to 144322244 its reverse (442223441), we get a palindrome (586545685).

The spelling of 144322244 in words is "one hundred forty-four million, three hundred twenty-two thousand, two hundred forty-four".