2106614840 has 96 divisors (see below), whose sum is σ = 5516637840. Its totient is φ = 720952320.

The previous prime is 2106614837. The next prime is 2106614893. The reversal of 2106614840 is 484166012.

It is a junction number, because it is equal to n+sod(n) for n = 2106614797 and 2106614806.

It is a congruent number.

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, 69479 + ... + 95081.

Almost surely, 2^2106614840 is an apocalyptic number.

2106614840 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 2106614840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2758318920).

2106614840 is an abundant number, since it is smaller than the sum of its proper divisors (3410023000).

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

2106614840 is a wasteful number, since it uses less digits than its factorization.

2106614840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25653 (or 25638 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2106614840 is about 45897.8740248391. The cubic root of 2106614840 is about 1281.9223312832.

The spelling of 2106614840 in words is "two billion, one hundred six million, six hundred fourteen thousand, eight hundred forty".