144402 has 16 divisors (see below), whose sum is σ = 296352. Its totient is φ = 46880.

The previous prime is 144383. The next prime is 144407. The reversal of 144402 is 204441.

It is not an unprimeable number, because it can be changed into a prime (144407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48 + ... + 539.

It is an arithmetic number, because the mean of its divisors is an integer number (18522).

2¹⁴⁴⁴⁰² is an apocalyptic number.

144402 is an abundant number, since it is smaller than the sum of its proper divisors (151950).

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

144402 is a wasteful number, since it uses less digits than its factorization.

144402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 144402 is about 380.0026315698. The cubic root of 144402 is about 52.4635574760.

Adding to 144402 its reverse (204441), we get a palindrome (348843).

The spelling of 144402 in words is "one hundred forty-four thousand, four hundred two", and thus it is an iban number.