2660870 has 24 divisors (see below), whose sum is σ = 5016816. Its totient is φ = 1016048.

The previous prime is 2660869. The next prime is 2660873. The reversal of 2660870 is 780662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5039 + ... + 5541.

It is an arithmetic number, because the mean of its divisors is an integer number (209034).

2^2660870 is an apocalyptic number.

2660870 is a deficient number, since it is larger than the sum of its proper divisors (2355946).

2660870 is a wasteful number, since it uses less digits than its factorization.

2660870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 2660870 is about 1631.2173368377. The cubic root of 2660870 is about 138.5717023716.

The spelling of 2660870 in words is "two million, six hundred sixty thousand, eight hundred seventy".