42002002144 has 12 divisors (see below), whose sum is σ = 82691441784. Its totient is φ = 21001001056.

The previous prime is 42002002123. The next prime is 42002002249. The reversal of 42002002144 is 44120020024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656281252 + ... + 656281315.

It is an arithmetic number, because the mean of its divisors is an integer number (6890953482).

Almost surely, 2^42002002144 is an apocalyptic number.

It is an amenable number.

42002002144 is a deficient number, since it is larger than the sum of its proper divisors (40689439640).

42002002144 is a wasteful number, since it uses less digits than its factorization.

42002002144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312562577 (or 1312562569 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 42002002144 its reverse (44120020024), we get a palindrome (86122022168).

The spelling of 42002002144 in words is "forty-two billion, two million, two thousand, one hundred forty-four".