144385394 has 8 divisors (see below), whose sum is σ = 216655068. Its totient is φ = 72167040.

The previous prime is 144385391. The next prime is 144385429. The reversal of 144385394 is 493583441.

It can be written as a sum of positive squares in 2 ways, for example, as 143688169 + 697225 = 11987^2 + 835^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (144385391) 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 3 ways as a sum of consecutive naturals, for example, 4787 + ... + 17654.

Almost surely, 2^144385394 is an apocalyptic number.

144385394 is a deficient number, since it is larger than the sum of its proper divisors (72269674).

144385394 is a wasteful number, since it uses less digits than its factorization.

144385394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25660.

The product of its digits is 207360, while the sum is 41.

The square root of 144385394 is about 12016.0473534353. The cubic root of 144385394 is about 524.6154632368.

The spelling of 144385394 in words is "one hundred forty-four million, three hundred eighty-five thousand, three hundred ninety-four".