144442442 has 8 divisors (see below), whose sum is σ = 217319232. Its totient is φ = 72002700.

The previous prime is 144442433. The next prime is 144442451. The reversal of 144442442 is 244244441.

It is an interprime number because it is at equal distance from previous prime (144442433) and next prime (144442451).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108434 + ... + 109757.

It is an arithmetic number, because the mean of its divisors is an integer number (27164904).

Almost surely, 2^144442442 is an apocalyptic number.

144442442 is a deficient number, since it is larger than the sum of its proper divisors (72876790).

144442442 is a wasteful number, since it uses less digits than its factorization.

144442442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218524.

The product of its digits is 16384, while the sum is 29.

The square root of 144442442 is about 12018.4209445334. The cubic root of 144442442 is about 524.6845476073.

Adding to 144442442 its reverse (244244441), we get a palindrome (388686883).

The spelling of 144442442 in words is "one hundred forty-four million, four hundred forty-two thousand, four hundred forty-two".