4255270640 has 40 divisors (see below), whose sum is σ = 9896888880. Its totient is φ = 1701526016.

The previous prime is 4255270559. The next prime is 4255270661. The reversal of 4255270640 is 460725524.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 4255270640.

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 7 ways as a sum of consecutive naturals, for example, 285452 + ... + 299988.

It is an arithmetic number, because the mean of its divisors is an integer number (247422222).

Almost surely, 2^4255270640 is an apocalyptic number.

4255270640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4255270640 is an abundant number, since it is smaller than the sum of its proper divisors (5641618240).

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

4255270640 is a wasteful number, since it uses less digits than its factorization.

4255270640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18209 (or 18203 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 4255270640 is about 65232.4354903295. The cubic root of 4255270640 is about 1620.4752251074.

The spelling of 4255270640 in words is "four billion, two hundred fifty-five million, two hundred seventy thousand, six hundred forty".