4255420140 has 36 divisors (see below), whose sum is σ = 12908108304. Its totient is φ = 1134778656.

The previous prime is 4255420133. The next prime is 4255420181. The reversal of 4255420140 is 410245524.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 11820432 + ... + 11820791.

It is an arithmetic number, because the mean of its divisors is an integer number (358558564).

Almost surely, 2^4255420140 is an apocalyptic number.

It is an amenable number.

4255420140 is an abundant number, since it is smaller than the sum of its proper divisors (8652688164).

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

4255420140 is a wasteful number, since it uses less digits than its factorization.

4255420140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23641238 (or 23641233 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 4255420140 is about 65233.5813825977. The cubic root of 4255420140 is about 1620.4942022168.

Adding to 4255420140 its reverse (410245524), we get a palindrome (4665665664).

The spelling of 4255420140 in words is "four billion, two hundred fifty-five million, four hundred twenty thousand, one hundred forty".