42256288240 has 20 divisors (see below), whose sum is σ = 98245870344. Its totient is φ = 16902515264.

The previous prime is 42256288213. The next prime is 42256288253. The reversal of 42256288240 is 4288265224.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264101722 + ... + 264101881.

Almost surely, 2^42256288240 is an apocalyptic number.

42256288240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42256288240 is an abundant number, since it is smaller than the sum of its proper divisors (55989582104).

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

42256288240 is a wasteful number, since it uses less digits than its factorization.

42256288240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528203616 (or 528203610 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 43.

The spelling of 42256288240 in words is "forty-two billion, two hundred fifty-six million, two hundred eighty-eight thousand, two hundred forty".