42435565940 has 12 divisors (see below), whose sum is σ = 89114688516. Its totient is φ = 16974226368.

The previous prime is 42435565897. The next prime is 42435565951. The reversal of 42435565940 is 4956553424.

It can be written as a sum of positive squares in 2 ways, for example, as 8578093924 + 33857472016 = 92618^2 + 184004^2 .

It is a congruent number.

It is an unprimeable number.

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, 1060889129 + ... + 1060889168.

It is an arithmetic number, because the mean of its divisors is an integer number (7426224043).

Almost surely, 2^42435565940 is an apocalyptic number.

It is an amenable number.

42435565940 is an abundant number, since it is smaller than the sum of its proper divisors (46679122576).

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

42435565940 is a wasteful number, since it uses less digits than its factorization.

42435565940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121778306 (or 2121778304 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 42435565940 in words is "forty-two billion, four hundred thirty-five million, five hundred sixty-five thousand, nine hundred forty".