2106040 has 32 divisors (see below), whose sum is σ = 4870080. Its totient is φ = 819072.

The previous prime is 2106029. The next prime is 2106059. The reversal of 2106040 is 406012.

It is a self number, because there is not a number n which added to its sum of digits gives 2106040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769 + ... + 2191.

It is an arithmetic number, because the mean of its divisors is an integer number (152190).

2^2106040 is an apocalyptic number.

2106040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2106040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2435040).

2106040 is an abundant number, since it is smaller than the sum of its proper divisors (2764040).

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

2106040 is a wasteful number, since it uses less digits than its factorization.

2106040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2106040 is about 1451.2201762655. The cubic root of 2106040 is about 128.1805719669.

The spelling of 2106040 in words is "two million, one hundred six thousand, forty".