42444040424 has 32 divisors (see below), whose sum is σ = 80624543400. Its totient is φ = 20945491200.

The previous prime is 42444040421. The next prime is 42444040433. The reversal of 42444040424 is 42404044424.

42444040424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 40715975524 + 1728064900 = 201782^2 + 41570^2 .

It is not an unprimeable number, because it can be changed into a prime (42444040421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173282 + ... + 338990.

Almost surely, 2^42444040424 is an apocalyptic number.

It is an amenable number.

42444040424 is a deficient number, since it is larger than the sum of its proper divisors (38180502976).

42444040424 is a wasteful number, since it uses less digits than its factorization.

42444040424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166133 (or 166129 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 42444040424 its reverse (42404044424), we get a palindrome (84848084848).

The spelling of 42444040424 in words is "forty-two billion, four hundred forty-four million, forty thousand, four hundred twenty-four".