144443550 has 48 divisors (see below), whose sum is σ = 364998960. Its totient is φ = 37789440.

The previous prime is 144443531. The next prime is 144443561. The reversal of 144443550 is 55344441.

144443550 = 1152² + 1153² + ... + 1251².

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1135 + ... + 17034.

It is an arithmetic number, because the mean of its divisors is an integer number (7604145).

Almost surely, 2^144443550 is an apocalyptic number.

144443550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144443550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182499480).

144443550 is an abundant number, since it is smaller than the sum of its proper divisors (220555410).

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

144443550 is a wasteful number, since it uses less digits than its factorization.

144443550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18237 (or 18232 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 144443550 is about 12018.4670403509. The cubic root of 144443550 is about 524.6858892005.

Adding to 144443550 its reverse (55344441), we get a palindrome (199787991).

The spelling of 144443550 in words is "one hundred forty-four million, four hundred forty-three thousand, five hundred fifty".