144203842 has 16 divisors (see below), whose sum is σ = 218115072. Its totient is φ = 71501760.

The previous prime is 144203833. The next prime is 144203869. The reversal of 144203842 is 248302441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 144203842.

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, 163242 + ... + 164122.

It is an arithmetic number, because the mean of its divisors is an integer number (13632192).

Almost surely, 2^144203842 is an apocalyptic number.

144203842 is a deficient number, since it is larger than the sum of its proper divisors (73911230).

144203842 is a wasteful number, since it uses less digits than its factorization.

144203842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 144203842 is about 12008.4904130369. The cubic root of 144203842 is about 524.3954849952.

The spelling of 144203842 in words is "one hundred forty-four million, two hundred three thousand, eight hundred forty-two".