2193930 has 48 divisors (see below), whose sum is σ = 6009120. Its totient is φ = 553824.

The previous prime is 2193929. The next prime is 2193941. The reversal of 2193930 is 393912.

It is a junction number, because it is equal to n+sod(n) for n = 2193894 and 2193903.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1069 + ... + 2351.

It is an arithmetic number, because the mean of its divisors is an integer number (125190).

2^2193930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2193930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3004560).

2193930 is an abundant number, since it is smaller than the sum of its proper divisors (3815190).

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

2193930 is a wasteful number, since it uses less digits than its factorization.

2193930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 2193930 is about 1481.1920874755. The cubic root of 2193930 is about 129.9394195054.

The spelling of 2193930 in words is "two million, one hundred ninety-three thousand, nine hundred thirty".