2130756 has 24 divisors (see below), whose sum is σ = 5107200. Its totient is φ = 690912.

The previous prime is 2130727. The next prime is 2130757. The reversal of 2130756 is 6570312.

It is a super-2 number, since 2×2130756² = 9080242263072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2130757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1956 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (212800).

2^2130756 is an apocalyptic number.

It is an amenable number.

2130756 is an abundant number, since it is smaller than the sum of its proper divisors (2976444).

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

2130756 is a wasteful number, since it uses less digits than its factorization.

2130756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843 (or 4841 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 2130756 is about 1459.7109302872. The cubic root of 2130756 is about 128.6800556403.

The spelling of 2130756 in words is "two million, one hundred thirty thousand, seven hundred fifty-six".