2194605 has 24 divisors (see below), whose sum is σ = 4348032. Its totient is φ = 1003104.

The previous prime is 2194579. The next prime is 2194613. The reversal of 2194605 is 5064912.

It is not a de Polignac number, because 2194605 - 2¹⁶ = 2129069 is a prime.

It is a super-2 number, since 2×2194605² = 9632582212050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3169 + ... + 3798.

It is an arithmetic number, because the mean of its divisors is an integer number (181168).

2^2194605 is an apocalyptic number.

It is an amenable number.

2194605 is a deficient number, since it is larger than the sum of its proper divisors (2153427).

2194605 is a wasteful number, since it uses less digits than its factorization.

2194605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6985 (or 6982 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2194605 is about 1481.4199269620. The cubic root of 2194605 is about 129.9527441655.

The spelling of 2194605 in words is "two million, one hundred ninety-four thousand, six hundred five".