144144402 has 16 divisors (see below), whose sum is σ = 288671040. Its totient is φ = 47984432.

The previous prime is 144144391. The next prime is 144144419. The reversal of 144144402 is 204441441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10902 + ... + 20177.

It is an arithmetic number, because the mean of its divisors is an integer number (18041940).

Almost surely, 2^144144402 is an apocalyptic number.

144144402 is an abundant number, since it is smaller than the sum of its proper divisors (144526638).

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

144144402 is a wasteful number, since it uses less digits than its factorization.

144144402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31857.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 144144402 is about 12006.0152423691. The cubic root of 144144402 is about 524.3234241521.

Adding to 144144402 its reverse (204441441), we get a palindrome (348585843).

The spelling of 144144402 in words is "one hundred forty-four million, one hundred forty-four thousand, four hundred two".