2199938 has 16 divisors (see below), whose sum is σ = 3580416. Its totient is φ = 1007760.

The previous prime is 2199931. The next prime is 2199941. The reversal of 2199938 is 8399912.

It is a junction number, because it is equal to n+sod(n) for n = 2199895 and 2199904.

It is not an unprimeable number, because it can be changed into a prime (2199931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4745 + ... + 5187.

It is an arithmetic number, because the mean of its divisors is an integer number (223776).

2^2199938 is an apocalyptic number.

2199938 is a deficient number, since it is larger than the sum of its proper divisors (1380478).

2199938 is a wasteful number, since it uses less digits than its factorization.

2199938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its digits is 34992, while the sum is 41.

The square root of 2199938 is about 1483.2187970761. The cubic root of 2199938 is about 130.0579229059.

The spelling of 2199938 in words is "two million, one hundred ninety-nine thousand, nine hundred thirty-eight".