144404422 has 4 divisors (see below), whose sum is σ = 216606636. Its totient is φ = 72202210.

The previous prime is 144404411. The next prime is 144404431. The reversal of 144404422 is 224404441.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36101104 + ... + 36101107.

It is an arithmetic number, because the mean of its divisors is an integer number (54151659).

Almost surely, 2^144404422 is an apocalyptic number.

144404422 is a deficient number, since it is larger than the sum of its proper divisors (72202214).

144404422 is an equidigital number, since it uses as much as digits as its factorization.

144404422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72202213.

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 144404422 is about 12016.8391018604. The cubic root of 144404422 is about 524.6385079144.

Adding to 144404422 its reverse (224404441), we get a palindrome (368808863).

The spelling of 144404422 in words is "one hundred forty-four million, four hundred four thousand, four hundred twenty-two".