2190859 has 8 divisors (see below), whose sum is σ = 2407680. Its totient is φ = 1977000.

The previous prime is 2190857. The next prime is 2190887. The reversal of 2190859 is 9580912.

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 2190859 - 2¹ = 2190857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2190857) 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, 1002 + ... + 2320.

It is an arithmetic number, because the mean of its divisors is an integer number (300960).

2^2190859 is an apocalyptic number.

2190859 is a deficient number, since it is larger than the sum of its proper divisors (216821).

2190859 is a wasteful number, since it uses less digits than its factorization.

2190859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 2190859 is about 1480.1550594448. The cubic root of 2190859 is about 129.8787627096.

The spelling of 2190859 in words is "two million, one hundred ninety thousand, eight hundred fifty-nine".