2199393 has 28 divisors (see below), whose sum is σ = 3777408. Its totient is φ = 1253880.

The previous prime is 2199377. The next prime is 2199401. The reversal of 2199393 is 3939912.

It is not a de Polignac number, because 2199393 - 2⁴ = 2199377 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199313) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4888 + ... + 5318.

2^2199393 is an apocalyptic number.

It is an amenable number.

2199393 is a deficient number, since it is larger than the sum of its proper divisors (1578015).

2199393 is an frugal number, since it uses more digits than its factorization.

2199393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 441 counting only the distinct ones).

The product of its digits is 13122, while the sum is 36.

The square root of 2199393 is about 1483.0350636448. The cubic root of 2199393 is about 130.0471820847.

The spelling of 2199393 in words is "two million, one hundred ninety-nine thousand, three hundred ninety-three".