144606644 has 144 divisors (see below), whose sum is σ = 348566400. Its totient is φ = 51819264.

The previous prime is 144606643. The next prime is 144606647. The reversal of 144606644 is 446606441.

It is a super-2 number, since 2×144606644² = 41822162977885472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144606643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1403897 + ... + 1403999.

It is an arithmetic number, because the mean of its divisors is an integer number (2420600).

Almost surely, 2^144606644 is an apocalyptic number.

144606644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144606644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174283200).

144606644 is an abundant number, since it is smaller than the sum of its proper divisors (203959756).

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

144606644 is a wasteful number, since it uses less digits than its factorization.

144606644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 144606644 is about 12025.2502676659. The cubic root of 144606644 is about 524.8832925764.

The spelling of 144606644 in words is "one hundred forty-four million, six hundred six thousand, six hundred forty-four".