144402222 has 8 divisors (see below), whose sum is σ = 288804456. Its totient is φ = 48134072.

The previous prime is 144402197. The next prime is 144402227. The reversal of 144402222 is 222204441.

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

144402222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144402227) 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, 12033513 + ... + 12033524.

It is an arithmetic number, because the mean of its divisors is an integer number (36100557).

Almost surely, 2^144402222 is an apocalyptic number.

144402222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144402222 is a wasteful number, since it uses less digits than its factorization.

144402222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24067042.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 144402222 is about 12016.7475632968. The cubic root of 144402222 is about 524.6358436133.

Adding to 144402222 its reverse (222204441), we get a palindrome (366606663).

The spelling of 144402222 in words is "one hundred forty-four million, four hundred two thousand, two hundred twenty-two".