42402220144 has 20 divisors (see below), whose sum is σ = 82160032840. Its totient is φ = 21199631040.

The previous prime is 42402220141. The next prime is 42402220171. The reversal of 42402220144 is 44102220424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42402220141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165967 + ... + 335185.

It is an arithmetic number, because the mean of its divisors is an integer number (4108001642).

Almost surely, 2^42402220144 is an apocalyptic number.

It is an amenable number.

42402220144 is a deficient number, since it is larger than the sum of its proper divisors (39757812696).

42402220144 is a wasteful number, since it uses less digits than its factorization.

42402220144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184888 (or 184882 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 42402220144 its reverse (44102220424), we get a palindrome (86504440568).

The spelling of 42402220144 in words is "forty-two billion, four hundred two million, two hundred twenty thousand, one hundred forty-four".