144442456 has 16 divisors (see below), whose sum is σ = 270957240. Its totient is φ = 72187200.

The previous prime is 144442451. The next prime is 144442457. The reversal of 144442456 is 654244441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144442451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30180 + ... + 34636.

Almost surely, 2^144442456 is an apocalyptic number.

It is an amenable number.

144442456 is a deficient number, since it is larger than the sum of its proper divisors (126514784).

144442456 is a wasteful number, since it uses less digits than its factorization.

144442456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514 (or 8510 counting only the distinct ones).

The product of its digits is 61440, while the sum is 34.

The square root of 144442456 is about 12018.4215269727. The cubic root of 144442456 is about 524.6845645589.

Adding to 144442456 its reverse (654244441), we get a palindrome (798686897).

It can be divided in two parts, 14444 and 2456, that added together give a square (16900 = 130²).

The spelling of 144442456 in words is "one hundred forty-four million, four hundred forty-two thousand, four hundred fifty-six".