144520442 has 8 divisors (see below), whose sum is σ = 236488032. Its totient is φ = 65691100.

The previous prime is 144520393. The next prime is 144520447. The reversal of 144520442 is 244025441.

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 (144520447) 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, 3284534 + ... + 3284577.

It is an arithmetic number, because the mean of its divisors is an integer number (29561004).

Almost surely, 2^144520442 is an apocalyptic number.

144520442 is a deficient number, since it is larger than the sum of its proper divisors (91967590).

144520442 is a wasteful number, since it uses less digits than its factorization.

144520442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569124.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 144520442 is about 12021.6655252091. The cubic root of 144520442 is about 524.7789751400.

Adding to 144520442 its reverse (244025441), we get a palindrome (388545883).

The spelling of 144520442 in words is "one hundred forty-four million, five hundred twenty thousand, four hundred forty-two".