2109958 has 8 divisors (see below), whose sum is σ = 3218760. Its totient is φ = 1037040.

The previous prime is 2109949. The next prime is 2109959. The reversal of 2109958 is 8599012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109959) 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, 8823 + ... + 9058.

It is an arithmetic number, because the mean of its divisors is an integer number (402345).

2^2109958 is an apocalyptic number.

2109958 is a deficient number, since it is larger than the sum of its proper divisors (1108802).

2109958 is a wasteful number, since it uses less digits than its factorization.

2109958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17942.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 2109958 is about 1452.5694475652. The cubic root of 2109958 is about 128.2600102129.

The spelling of 2109958 in words is "two million, one hundred nine thousand, nine hundred fifty-eight".