144407722 has 8 divisors (see below), whose sum is σ = 220698756. Its totient is φ = 70841472.

The previous prime is 144407701. The next prime is 144407723. The reversal of 144407722 is 227704441.

It can be written as a sum of positive squares in 2 ways, for example, as 143017681 + 1390041 = 11959^2 + 1179^2 .

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 (144407723) 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, 681063 + ... + 681274.

Almost surely, 2^144407722 is an apocalyptic number.

144407722 is a deficient number, since it is larger than the sum of its proper divisors (76291034).

144407722 is a wasteful number, since it uses less digits than its factorization.

144407722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362392.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 144407722 is about 12016.9764083982. The cubic root of 144407722 is about 524.6425043153.

The spelling of 144407722 in words is "one hundred forty-four million, four hundred seven thousand, seven hundred twenty-two".