144845730 has 48 divisors (see below), whose sum is σ = 377732160. Its totient is φ = 38509344.

The previous prime is 144845719. The next prime is 144845737. The reversal of 144845730 is 37548441.

144845730 is a `hidden beast` number, since 1 + 4 + 4 + 84 + 573 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (144845737) 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 23 ways as a sum of consecutive naturals, for example, 30069 + ... + 34551.

It is an arithmetic number, because the mean of its divisors is an integer number (7869420).

Almost surely, 2^144845730 is an apocalyptic number.

144845730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144845730 is an abundant number, since it is smaller than the sum of its proper divisors (232886430).

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

144845730 is a wasteful number, since it uses less digits than its factorization.

144845730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4855 (or 4852 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 144845730 is about 12035.1871609876. The cubic root of 144845730 is about 525.1724059620.

The spelling of 144845730 in words is "one hundred forty-four million, eight hundred forty-five thousand, seven hundred thirty".