2190756 has 24 divisors (see below), whose sum is σ = 5412960. Its totient is φ = 687232.

The previous prime is 2190751. The next prime is 2190763. The reversal of 2190756 is 6570912.

It is not an unprimeable number, because it can be changed into a prime (2190751) 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, 5166 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (225540).

2^2190756 is an apocalyptic number.

It is an amenable number.

2190756 is an abundant number, since it is smaller than the sum of its proper divisors (3222204).

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

2190756 is a wasteful number, since it uses less digits than its factorization.

2190756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10763 (or 10761 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 2190756 is about 1480.1202653839. The cubic root of 2190756 is about 129.8767273249.

The spelling of 2190756 in words is "two million, one hundred ninety thousand, seven hundred fifty-six".