2194623 has 12 divisors (see below), whose sum is σ = 3224520. Its totient is φ = 1437936.

The previous prime is 2194613. The next prime is 2194631. The reversal of 2194623 is 3264912.

It is not a de Polignac number, because 2194623 - 2¹⁰ = 2193599 is a prime.

It is a super-2 number, since 2×2194623² = 9632740224258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1536 + ... + 2597.

It is an arithmetic number, because the mean of its divisors is an integer number (268710).

2^2194623 is an apocalyptic number.

2194623 is a deficient number, since it is larger than the sum of its proper divisors (1029897).

2194623 is a wasteful number, since it uses less digits than its factorization.

2194623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198 (or 4195 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 2194623 is about 1481.4260022019. The cubic root of 2194623 is about 129.9530994524.

The spelling of 2194623 in words is "two million, one hundred ninety-four thousand, six hundred twenty-three".