2140912 has 30 divisors (see below), whose sum is σ = 4415888. Its totient is φ = 1005312.

The previous prime is 2140907. The next prime is 2140913. The reversal of 2140912 is 2190412.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2140912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4393 + ... + 4855.

2^2140912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2140912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2207944).

2140912 is an abundant number, since it is smaller than the sum of its proper divisors (2274976).

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

2140912 is a wasteful number, since it uses less digits than its factorization.

2140912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2140912 is about 1463.1855658118. The cubic root of 2140912 is about 128.8841778346.

The spelling of 2140912 in words is "two million, one hundred forty thousand, nine hundred twelve".