2090660 has 96 divisors (see below), whose sum is σ = 5588352. Its totient is φ = 645120.

The previous prime is 2090651. The next prime is 2090681. The reversal of 2090660 is 660902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48599 + ... + 48641.

It is an arithmetic number, because the mean of its divisors is an integer number (58212).

2^2090660 is an apocalyptic number.

2090660 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 2090660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2794176).

2090660 is an abundant number, since it is smaller than the sum of its proper divisors (3497692).

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

2090660 is a wasteful number, since it uses less digits than its factorization.

2090660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2090660 is about 1445.9114772350. The cubic root of 2090660 is about 127.8677833968.

The spelling of 2090660 in words is "two million, ninety thousand, six hundred sixty".