2199738 has 16 divisors (see below), whose sum is σ = 4414176. Its totient is φ = 730800.

The previous prime is 2199719. The next prime is 2199739. The reversal of 2199738 is 8379912.

It is a junction number, because it is equal to n+sod(n) for n = 2199696 and 2199705.

It is not an unprimeable number, because it can be changed into a prime (2199739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2788 + ... + 3488.

It is an arithmetic number, because the mean of its divisors is an integer number (275886).

2^2199738 is an apocalyptic number.

2199738 is an abundant number, since it is smaller than the sum of its proper divisors (2214438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2199738 is a wasteful number, since it uses less digits than its factorization.

2199738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229.

The product of its digits is 27216, while the sum is 39.

The square root of 2199738 is about 1483.1513746075. The cubic root of 2199738 is about 130.0539815262.

The spelling of 2199738 in words is "two million, one hundred ninety-nine thousand, seven hundred thirty-eight".