144400421244 has 12 divisors (see below), whose sum is σ = 336934316264. Its totient is φ = 48133473744.

The previous prime is 144400421237. The next prime is 144400421251. The reversal of 144400421244 is 442124004441.

It is an interprime number because it is at equal distance from previous prime (144400421237) and next prime (144400421251).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6016684207 + ... + 6016684230.

Almost surely, 2^144400421244 is an apocalyptic number.

It is an amenable number.

144400421244 is an abundant number, since it is smaller than the sum of its proper divisors (192533895020).

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

144400421244 is a wasteful number, since it uses less digits than its factorization.

144400421244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12033368444 (or 12033368442 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 144400421244 its reverse (442124004441), we get a palindrome (586524425685).

The spelling of 144400421244 in words is "one hundred forty-four billion, four hundred million, four hundred twenty-one thousand, two hundred forty-four".