2666142 has 32 divisors (see below), whose sum is σ = 5997600. Its totient is φ = 877824.

The previous prime is 2666141. The next prime is 2666177. The reversal of 2666142 is 2416662.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4984 + ... + 5492.

It is an arithmetic number, because the mean of its divisors is an integer number (187425).

2^2666142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2666142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2998800).

2666142 is an abundant number, since it is smaller than the sum of its proper divisors (3331458).

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

2666142 is a wasteful number, since it uses less digits than its factorization.

2666142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 611 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2666142 is about 1632.8325082506. The cubic root of 2666142 is about 138.6631596849.

The spelling of 2666142 in words is "two million, six hundred sixty-six thousand, one hundred forty-two".