2131788 has 24 divisors (see below), whose sum is σ = 5060160. Its totient is φ = 698320.

The previous prime is 2131771. The next prime is 2131793. The reversal of 2131788 is 8871312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798 + ... + 2213.

It is an arithmetic number, because the mean of its divisors is an integer number (210840).

2^2131788 is an apocalyptic number.

It is an amenable number.

2131788 is an abundant number, since it is smaller than the sum of its proper divisors (2928372).

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

2131788 is a wasteful number, since it uses less digits than its factorization.

2131788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077 (or 3075 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 2131788 is about 1460.0643821421. The cubic root of 2131788 is about 128.7008270447.

The spelling of 2131788 in words is "two million, one hundred thirty-one thousand, seven hundred eighty-eight".