2130255240 has 64 divisors (see below), whose sum is σ = 6397392960. Its totient is φ = 567479040.

The previous prime is 2130255223. The next prime is 2130255247. The reversal of 2130255240 is 425520312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2130255240.

It is not an unprimeable number, because it can be changed into a prime (2130255247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113827 + ... + 131213.

It is an arithmetic number, because the mean of its divisors is an integer number (99959265).

Almost surely, 2^2130255240 is an apocalyptic number.

2130255240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130255240 is an abundant number, since it is smaller than the sum of its proper divisors (4267137720).

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

2130255240 is a wasteful number, since it uses less digits than its factorization.

2130255240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18422 (or 18418 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2130255240 is about 46154.6881692424. The cubic root of 2130255240 is about 1286.6997426179.

Adding to 2130255240 its reverse (425520312), we get a palindrome (2555775552).

The spelling of 2130255240 in words is "two billion, one hundred thirty million, two hundred fifty-five thousand, two hundred forty".