2199423 has 4 divisors (see below), whose sum is σ = 2932568. Its totient is φ = 1466280.

The previous prime is 2199401. The next prime is 2199427. The reversal of 2199423 is 3249912.

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

It is not a de Polignac number, because 2199423 - 2²⁰ = 1150847 is a prime.

It is a D-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 (2199427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366568 + ... + 366573.

It is an arithmetic number, because the mean of its divisors is an integer number (733142).

2^2199423 is an apocalyptic number.

2199423 is a deficient number, since it is larger than the sum of its proper divisors (733145).

2199423 is an equidigital number, since it uses as much as digits as its factorization.

2199423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733144.

The product of its digits is 3888, while the sum is 30.

The square root of 2199423 is about 1483.0451780037. The cubic root of 2199423 is about 130.0477733688.

The spelling of 2199423 in words is "two million, one hundred ninety-nine thousand, four hundred twenty-three".