144450442 has 16 divisors (see below), whose sum is σ = 232209792. Its totient is φ = 67217040.

The previous prime is 144450401. The next prime is 144450443. The reversal of 144450442 is 244054441.

It is a self number, because there is not a number n which added to its sum of digits gives 144450442.

It is not an unprimeable number, because it can be changed into a prime (144450443) 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 7 ways as a sum of consecutive naturals, for example, 40734 + ... + 44137.

It is an arithmetic number, because the mean of its divisors is an integer number (14513112).

Almost surely, 2^144450442 is an apocalyptic number.

144450442 is a deficient number, since it is larger than the sum of its proper divisors (87759350).

144450442 is a wasteful number, since it uses less digits than its factorization.

144450442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84933.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 144450442 is about 12018.7537623499. The cubic root of 144450442 is about 524.6942340467.

The spelling of 144450442 in words is "one hundred forty-four million, four hundred fifty thousand, four hundred forty-two".