2130656 has 24 divisors (see below), whose sum is σ = 4576824. Its totient is φ = 968320.

The previous prime is 2130631. The next prime is 2130671. The reversal of 2130656 is 6560312.

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, 2675 + ... + 3378.

It is an arithmetic number, because the mean of its divisors is an integer number (190701).

2^2130656 is an apocalyptic number.

It is an amenable number.

2130656 is an abundant number, since it is smaller than the sum of its proper divisors (2446168).

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

2130656 is a wasteful number, since it uses less digits than its factorization.

2130656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074 (or 6066 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2130656 is about 1459.6766765281. The cubic root of 2130656 is about 128.6780425509.

Adding to 2130656 its reverse (6560312), we get a palindrome (8690968).

The spelling of 2130656 in words is "two million, one hundred thirty thousand, six hundred fifty-six".