42040340870 has 16 divisors (see below), whose sum is σ = 82551942288. Its totient is φ = 15287396640.

The previous prime is 42040340863. The next prime is 42040340879. The reversal of 42040340870 is 7804304024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42040340879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191092349 + ... + 191092568.

It is an arithmetic number, because the mean of its divisors is an integer number (5159496393).

Almost surely, 2^42040340870 is an apocalyptic number.

42040340870 is a deficient number, since it is larger than the sum of its proper divisors (40511601418).

42040340870 is a wasteful number, since it uses less digits than its factorization.

42040340870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382184935.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 42040340870 its reverse (7804304024), we get a palindrome (49844644894).

The spelling of 42040340870 in words is "forty-two billion, forty million, three hundred forty thousand, eight hundred seventy".