2106620 has 12 divisors (see below), whose sum is σ = 4423944. Its totient is φ = 842640.

The previous prime is 2106619. The next prime is 2106631. The reversal of 2106620 is 266012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52646 + ... + 52685.

It is an arithmetic number, because the mean of its divisors is an integer number (368662).

2^2106620 is an apocalyptic number.

2106620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106620 is an abundant number, since it is smaller than the sum of its proper divisors (2317324).

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

2106620 is a wasteful number, since it uses less digits than its factorization.

2106620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105340 (or 105338 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2106620 is about 1451.4199943504. The cubic root of 2106620 is about 128.1923377941.

The spelling of 2106620 in words is "two million, one hundred six thousand, six hundred twenty".