144420002 has 24 divisors (see below), whose sum is σ = 224282604. Its totient is φ = 69737472.

The previous prime is 144419987. The next prime is 144420011. The reversal of 144420002 is 200024441.

It can be written as a sum of positive squares in 2 ways, for example, as 141395881 + 3024121 = 11891^2 + 1739^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428378 + ... + 428714.

Almost surely, 2^144420002 is an apocalyptic number.

144420002 is a deficient number, since it is larger than the sum of its proper divisors (79862602).

144420002 is an equidigital number, since it uses as much as digits as its factorization.

144420002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 144420002 is about 12017.4873413705. The cubic root of 144420002 is about 524.6573752360.

Adding to 144420002 its reverse (200024441), we get a palindrome (344444443).

The spelling of 144420002 in words is "one hundred forty-four million, four hundred twenty thousand, two".