42210310422440 has 32 divisors (see below), whose sum is σ = 94973416391880. Its totient is φ = 16884085423872.

The previous prime is 42210310422439. The next prime is 42210310422463. The reversal of 42210310422440 is 4422401301224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33791457293764 + 8418853128676 = 5813042^2 + 2901526^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21869882 + ... + 23721558.

Almost surely, 2^{42210310422440} is an apocalyptic number.

42210310422440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42210310422440 is an abundant number, since it is smaller than the sum of its proper divisors (52763105969440).

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

42210310422440 is a wasteful number, since it uses less digits than its factorization.

42210310422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421581 (or 2421577 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 42210310422440 its reverse (4422401301224), we get a palindrome (46632711723664).

The spelling of 42210310422440 in words is "forty-two trillion, two hundred ten billion, three hundred ten million, four hundred twenty-two thousand, four hundred forty".