2105740 has 72 divisors (see below), whose sum is σ = 5533920. Its totient is φ = 658944.

The previous prime is 2105731. The next prime is 2105759. The reversal of 2105740 is 475012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23616 + ... + 23704.

It is an arithmetic number, because the mean of its divisors is an integer number (76860).

2^2105740 is an apocalyptic number.

2105740 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 2105740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2766960).

2105740 is an abundant number, since it is smaller than the sum of its proper divisors (3428180).

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

2105740 is a wasteful number, since it uses less digits than its factorization.

2105740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2105740 is about 1451.1168112871. The cubic root of 2105740 is about 128.1744853466.

The spelling of 2105740 in words is "two million, one hundred five thousand, seven hundred forty".