2666140 has 24 divisors (see below), whose sum is σ = 5654880. Its totient is φ = 1055808.

The previous prime is 2666117. The next prime is 2666141. The reversal of 2666140 is 416662.

It is a happy number.

2666140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666141) 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 7 ways as a sum of consecutive naturals, for example, 1569 + ... + 2791.

It is an arithmetic number, because the mean of its divisors is an integer number (235620).

2^2666140 is an apocalyptic number.

2666140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666140 is an abundant number, since it is smaller than the sum of its proper divisors (2988740).

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

2666140 is a wasteful number, since it uses less digits than its factorization.

2666140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341 (or 1339 counting only the distinct ones).

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

The square root of 2666140 is about 1632.8318958178. The cubic root of 2666140 is about 138.6631250123.

It can be divided in two parts, 26 and 66140, that added together give a palindrome (66166).

The spelling of 2666140 in words is "two million, six hundred sixty-six thousand, one hundred forty".