2208194 has 4 divisors (see below), whose sum is σ = 3312294. Its totient is φ = 1104096.

The previous prime is 2208131. The next prime is 2208203. The reversal of 2208194 is 4918022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4918022 = 2 ⋅2459011.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 855625 = 1163^2 + 925^2 .

It is a super-2 number, since 2×2208194² = 9752241483272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552047 + ... + 552050.

2^2208194 is an apocalyptic number.

2208194 is a deficient number, since it is larger than the sum of its proper divisors (1104100).

2208194 is a wasteful number, since it uses less digits than its factorization.

2208194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104099.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2208194 is about 1485.9993270523. Note that the first 3 decimals coincide. The cubic root of 2208194 is about 130.2204150297.

The spelling of 2208194 in words is "two million, two hundred eight thousand, one hundred ninety-four".