2905660 has 12 divisors (see below), whose sum is σ = 6101928. Its totient is φ = 1162256.

The previous prime is 2905631. The next prime is 2905667. The reversal of 2905660 is 665092.

2905660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72622 + ... + 72661.

It is an arithmetic number, because the mean of its divisors is an integer number (508494).

2^2905660 is an apocalyptic number.

2905660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2905660 is an abundant number, since it is smaller than the sum of its proper divisors (3196268).

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

2905660 is a wasteful number, since it uses less digits than its factorization.

2905660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145292 (or 145290 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2905660 is about 1704.5996597442. The cubic root of 2905660 is about 142.6970291838.

The spelling of 2905660 in words is "two million, nine hundred five thousand, six hundred sixty".