42340220256 has 24 divisors (see below), whose sum is σ = 111143078424. Its totient is φ = 14113406720.

The previous prime is 42340220233. The next prime is 42340220257. The reversal of 42340220256 is 65202204324.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42340220257) 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, 220521885 + ... + 220522076.

It is an arithmetic number, because the mean of its divisors is an integer number (4630961601).

Almost surely, 2^42340220256 is an apocalyptic number.

It is an amenable number.

42340220256 is an abundant number, since it is smaller than the sum of its proper divisors (68802858168).

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

42340220256 is a wasteful number, since it uses less digits than its factorization.

42340220256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441043974 (or 441043966 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The spelling of 42340220256 in words is "forty-two billion, three hundred forty million, two hundred twenty thousand, two hundred fifty-six".