144240002 has 8 divisors (see below), whose sum is σ = 229087116. Its totient is φ = 67877632.

The previous prime is 144239989. The next prime is 144240007. The reversal of 144240002 is 200042441.

It can be written as a sum of positive squares in 2 ways, for example, as 141110641 + 3129361 = 11879^2 + 1769^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (144240007) 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, 2121143 + ... + 2121210.

Almost surely, 2^144240002 is an apocalyptic number.

144240002 is a deficient number, since it is larger than the sum of its proper divisors (84847114).

144240002 is a wasteful number, since it uses less digits than its factorization.

144240002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242372.

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

The square root of 144240002 is about 12009.9959200659. The cubic root of 144240002 is about 524.4393131294.

Adding to 144240002 its reverse (200042441), we get a palindrome (344282443).

The spelling of 144240002 in words is "one hundred forty-four million, two hundred forty thousand, two".