144020004 has 12 divisors (see below), whose sum is σ = 336046704. Its totient is φ = 48006664.

The previous prime is 144019991. The next prime is 144020033. The reversal of 144020004 is 400020441.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6000822 + ... + 6000845.

It is an arithmetic number, because the mean of its divisors is an integer number (28003892).

Almost surely, 2^144020004 is an apocalyptic number.

It is an amenable number.

144020004 is an abundant number, since it is smaller than the sum of its proper divisors (192026700).

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

144020004 is a wasteful number, since it uses less digits than its factorization.

144020004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12001674 (or 12001672 counting only the distinct ones).

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

The square root of 144020004 is about 12000.8334710553. The cubic root of 144020004 is about 524.1725486952.

Adding to 144020004 its reverse (400020441), we get a palindrome (544040445).

The spelling of 144020004 in words is "one hundred forty-four million, twenty thousand, four".