144215244 has 144 divisors (see below), whose sum is σ = 408844800. Its totient is φ = 42653952.

The previous prime is 144215243. The next prime is 144215273. The reversal of 144215244 is 442512441.

It is not an unprimeable number, because it can be changed into a prime (144215243) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1400097 + ... + 1400199.

It is an arithmetic number, because the mean of its divisors is an integer number (2839200).

Almost surely, 2^144215244 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 144215244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204422400).

144215244 is an abundant number, since it is smaller than the sum of its proper divisors (264629556).

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

144215244 is a wasteful number, since it uses less digits than its factorization.

144215244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 239 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 144215244 is about 12008.9651510861. The cubic root of 144215244 is about 524.4093057082.

Adding to 144215244 its reverse (442512441), we get a palindrome (586727685).

The spelling of 144215244 in words is "one hundred forty-four million, two hundred fifteen thousand, two hundred forty-four".