2641660 has 24 divisors (see below), whose sum is σ = 6340320. Its totient is φ = 905664.

The previous prime is 2641657. The next prime is 2641663. The reversal of 2641660 is 661462.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2641657) and next prime (2641663).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641663) 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, 9295 + ... + 9574.

It is an arithmetic number, because the mean of its divisors is an integer number (264180).

2^2641660 is an apocalyptic number.

2641660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2641660 is an abundant number, since it is smaller than the sum of its proper divisors (3698660).

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

2641660 is a wasteful number, since it uses less digits than its factorization.

2641660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18885 (or 18883 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2641660 is about 1625.3184303391. The cubic root of 2641660 is about 138.2374264665.

The spelling of 2641660 in words is "two million, six hundred forty-one thousand, six hundred sixty".