144023004 has 72 divisors (see below), whose sum is σ = 373464000. Its totient is φ = 46785024.

The previous prime is 144022979. The next prime is 144023023. The reversal of 144023004 is 400320441.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252832 + ... + 253400.

It is an arithmetic number, because the mean of its divisors is an integer number (5187000).

Almost surely, 2^144023004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144023004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186732000).

144023004 is an abundant number, since it is smaller than the sum of its proper divisors (229440996).

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

144023004 is a wasteful number, since it uses less digits than its factorization.

144023004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 144023004 is about 12000.9584617230. The cubic root of 144023004 is about 524.1761882515.

Adding to 144023004 its reverse (400320441), we get a palindrome (544343445).

The spelling of 144023004 in words is "one hundred forty-four million, twenty-three thousand, four".