42044244040 has 32 divisors (see below), whose sum is σ = 97156297080. Its totient is φ = 16363164672.

The previous prime is 42044244037. The next prime is 42044244049. The reversal of 42044244040 is 4044244024.

It can be written as a sum of positive squares in 4 ways, for example, as 37543712644 + 4500531396 = 193762^2 + 67086^2 .

It is not an unprimeable number, because it can be changed into a prime (42044244049) 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, 14202657 + ... + 14205616.

Almost surely, 2^42044244040 is an apocalyptic number.

42044244040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42044244040 is an abundant number, since it is smaller than the sum of its proper divisors (55112053040).

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

42044244040 is a wasteful number, since it uses less digits than its factorization.

42044244040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28408321 (or 28408317 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42044244040 its reverse (4044244024), we get a palindrome (46088488064).

The spelling of 42044244040 in words is "forty-two billion, forty-four million, two hundred forty-four thousand, forty".