2130440256 has 84 divisors (see below), whose sum is σ = 6978895872. Its totient is φ = 608696064.

The previous prime is 2130440233. The next prime is 2130440267. The reversal of 2130440256 is 6520440312.

2130440256 is a `hidden beast` number, since 213 + 0 + 440 + 2 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260160 + ... + 268223.

Almost surely, 2^2130440256 is an apocalyptic number.

It is an amenable number.

2130440256 is an abundant number, since it is smaller than the sum of its proper divisors (4848455616).

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

2130440256 is a wasteful number, since it uses less digits than its factorization.

2130440256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528408 (or 528395 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2130440256 is about 46156.6924291592. The cubic root of 2130440256 is about 1286.7369921680.

Adding to 2130440256 its reverse (6520440312), we get a palindrome (8650880568).

The spelling of 2130440256 in words is "two billion, one hundred thirty million, four hundred forty thousand, two hundred fifty-six".