2190785 has 8 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 1731184.

The previous prime is 2190763. The next prime is 2190809. The reversal of 2190785 is 5870912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2190785 - 2¹² = 2186689 is a prime.

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, 2225 + ... + 3054.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

2^2190785 is an apocalyptic number.

It is an amenable number.

2190785 is a deficient number, since it is larger than the sum of its proper divisors (470335).

2190785 is an equidigital number, since it uses as much as digits as its factorization.

2190785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5367.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2190785 is about 1480.1300618527. The cubic root of 2190785 is about 129.8773004008.

The spelling of 2190785 in words is "two million, one hundred ninety thousand, seven hundred eighty-five".