2209594 has 4 divisors (see below), whose sum is σ = 3314394. Its totient is φ = 1104796.

The previous prime is 2209589. The next prime is 2209601. The reversal of 2209594 is 4959022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1134225 + 1075369 = 1065^2 + 1037^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552397 + ... + 552400.

2^2209594 is an apocalyptic number.

2209594 is a deficient number, since it is larger than the sum of its proper divisors (1104800).

2209594 is a wasteful number, since it uses less digits than its factorization.

2209594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104799.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2209594 is about 1486.4703158826. The cubic root of 2209594 is about 130.2479292286.

The spelling of 2209594 in words is "two million, two hundred nine thousand, five hundred ninety-four".