2190589 has 12 divisors (see below), whose sum is σ = 2369052. Its totient is φ = 2024000.

The previous prime is 2190583. The next prime is 2190593. The reversal of 2190589 is 9850912.

It can be written as a sum of positive squares in 2 ways, for example, as 1119364 + 1071225 = 1058^2 + 1035^2 .

It is not a de Polignac number, because 2190589 - 2³ = 2190581 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21639 + ... + 21739.

It is an arithmetic number, because the mean of its divisors is an integer number (197421).

2^2190589 is an apocalyptic number.

It is an amenable number.

2190589 is a deficient number, since it is larger than the sum of its proper divisors (178463).

2190589 is a wasteful number, since it uses less digits than its factorization.

2190589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 165 counting only the distinct ones).

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

The square root of 2190589 is about 1480.0638499740. The cubic root of 2190589 is about 129.8734270997.

The spelling of 2190589 in words is "two million, one hundred ninety thousand, five hundred eighty-nine".