42340520340 has 96 divisors (see below), whose sum is σ = 132673968000. Its totient is φ = 11209556736.

The previous prime is 42340520329. The next prime is 42340520357. The reversal of 42340520340 is 4302504324.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 206985 + ... + 357104.

It is an arithmetic number, because the mean of its divisors is an integer number (1382020500).

Almost surely, 2^42340520340 is an apocalyptic number.

It is an amenable number.

42340520340 is an abundant number, since it is smaller than the sum of its proper divisors (90333447660).

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

42340520340 is a wasteful number, since it uses less digits than its factorization.

42340520340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564246 (or 564238 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The spelling of 42340520340 in words is "forty-two billion, three hundred forty million, five hundred twenty thousand, three hundred forty".