2119906 has 8 divisors (see below), whose sum is σ = 3347280. Its totient is φ = 1004148.

The previous prime is 2119879. The next prime is 2119907. The reversal of 2119906 is 6099112.

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

It is not an unprimeable number, because it can be changed into a prime (2119907) 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, 27856 + ... + 27931.

It is an arithmetic number, because the mean of its divisors is an integer number (418410).

2^2119906 is an apocalyptic number.

2119906 is a deficient number, since it is larger than the sum of its proper divisors (1227374).

2119906 is a wasteful number, since it uses less digits than its factorization.

2119906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55808.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2119906 is about 1455.9896977657. The cubic root of 2119906 is about 128.4612670738.

It can be divided in two parts, 2119 and 906, that added together give a square (3025 = 55²).

The spelling of 2119906 in words is "two million, one hundred nineteen thousand, nine hundred six".