2106022740 has 24 divisors (see below), whose sum is σ = 5896863840. Its totient is φ = 561606048.

The previous prime is 2106022729. The next prime is 2106022741. The reversal of 2106022740 is 472206012.

It is a self number, because there is not a number n which added to its sum of digits gives 2106022740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106022741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17550130 + ... + 17550249.

It is an arithmetic number, because the mean of its divisors is an integer number (245702660).

Almost surely, 2^2106022740 is an apocalyptic number.

2106022740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106022740 is an abundant number, since it is smaller than the sum of its proper divisors (3790841100).

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

2106022740 is a wasteful number, since it uses less digits than its factorization.

2106022740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35100391 (or 35100389 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2106022740 is about 45891.4233817170. The cubic root of 2106022740 is about 1281.8022179903.

Adding to 2106022740 its reverse (472206012), we get a palindrome (2578228752).

The spelling of 2106022740 in words is "two billion, one hundred six million, twenty-two thousand, seven hundred forty".