144355644 has 36 divisors (see below), whose sum is σ = 373389016. Its totient is φ = 46999008.

The previous prime is 144355643. The next prime is 144355663. The reversal of 144355644 is 446553441.

144355644 is a `hidden beast` number, since 1 + 4 + 4 + 3 + 5 + 5 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 144355599 and 144355608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144355643) 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 11 ways as a sum of consecutive naturals, for example, 45079 + ... + 48174.

Almost surely, 2^144355644 is an apocalyptic number.

It is an amenable number.

144355644 is an abundant number, since it is smaller than the sum of its proper divisors (229033372).

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

144355644 is a wasteful number, since it uses less digits than its factorization.

144355644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93306 (or 93301 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 144355644 is about 12014.8093617835. The cubic root of 144355644 is about 524.5794291624.

The spelling of 144355644 in words is "one hundred forty-four million, three hundred fifty-five thousand, six hundred forty-four".