2191914 has 16 divisors (see below), whose sum is σ = 4871040. Its totient is φ = 730620.

The previous prime is 2191883. The next prime is 2191949. The reversal of 2191914 is 4191912.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20242 + ... + 20349.

It is an arithmetic number, because the mean of its divisors is an integer number (304440).

2^2191914 is an apocalyptic number.

2191914 is an abundant number, since it is smaller than the sum of its proper divisors (2679126).

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

2191914 is a wasteful number, since it uses less digits than its factorization.

2191914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40602 (or 40596 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 2191914 is about 1480.5113981324. The cubic root of 2191914 is about 129.8996069091.

The spelling of 2191914 in words is "two million, one hundred ninety-one thousand, nine hundred fourteen".