2606040 has 128 divisors (see below), whose sum is σ = 9216000. Its totient is φ = 653184.

The previous prime is 2606039. The next prime is 2606041. The reversal of 2606040 is 406062.

2606040 is a `hidden beast` number, since 2 + 60 + 604 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2606039) and next prime (2606041).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2606041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20457 + ... + 20583.

It is an arithmetic number, because the mean of its divisors is an integer number (72000).

2^2606040 is an apocalyptic number.

2606040 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 2606040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4608000).

2606040 is an abundant number, since it is smaller than the sum of its proper divisors (6609960).

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

2606040 is a wasteful number, since it uses less digits than its factorization.

2606040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2606040 is about 1614.3233876767. The cubic root of 2606040 is about 137.6132840519.

The spelling of 2606040 in words is "two million, six hundred six thousand, forty".