42434213440 has 28 divisors (see below), whose sum is σ = 101046471516. Its totient is φ = 16973685248.

The previous prime is 42434213413. The next prime is 42434213443. The reversal of 42434213440 is 4431243424.

It can be written as a sum of positive squares in 2 ways, for example, as 13634765824 + 28799447616 = 116768^2 + 169704^2 .

It is not an unprimeable number, because it can be changed into a prime (42434213443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66303139 + ... + 66303778.

Almost surely, 2^42434213440 is an apocalyptic number.

42434213440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42434213440 is an abundant number, since it is smaller than the sum of its proper divisors (58612258076).

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

42434213440 is a wasteful number, since it uses less digits than its factorization.

42434213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132606934 (or 132606924 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 42434213440 its reverse (4431243424), we get a palindrome (46865456864).

The spelling of 42434213440 in words is "forty-two billion, four hundred thirty-four million, two hundred thirteen thousand, four hundred forty".